Biography
Sidney Alderman Blackmer (13 July 1895 – 6 October 1973) was an American actor. Blackmer was born and raised in Salisbury, North Carolina. He started off in an insurance and financial business but gave up on it. While working as a builder's laborer on a new building, he saw a Pearl White serial being filmed and immediately decided to go into acting. Blackmer went to New York hoping to act on the stage. While in the city, he took jobs and extra work at various film studios at the then motion pic...
Known For
Complete Filmography

Do You Take This Stranger?
1971
as G.R. Jarvis
A social climber/con artist schemes to inherit one million dollars by trading identities with a dying man.
Revenge Is My Destiny
1971
as Gregory Mann
Chris Robinson plays an eyepatched Vietnam vet named Ross Archer, who comes home to find that his wife had left him and become involved with some shad...

Rosemary's Baby
1968
as Roman Castevet
A young couple, Rosemary and Guy, moves into an infamous New York apartment building, known by frightening legends and mysterious events, with the pur...

A Covenant with Death
1967
as Col. Oates
An innocent man is found guilty of murder and sentenced to death, but as he's about to be hanged he accidentally kills his executioner. He now faces a...

Joy in the Morning
1965
as Dean James Darwent
Carl Brown and Annie McGairy are in love. Their Irish immigrant parents knew each other in the old country - and Carl's parents want better for their ...

How to Murder Your Wife
1965
as Judge Blackstone
Stanley Ford leads an idyllic bachelor life. He is a nationally syndicated cartoonist whose Bash Brannigan series provides him with a luxury townhouse...

What Makes Sammy Run?
1959
as H.L. Harrington
An adaptation of Budd Schulberg's incendiary 1941 novel about the rise of an unscrupulous Hollywood producer. The production was divided into two part...

Strange Witness
1958
as Christopher
Ruth and her lover David are caught having an affair by her husband John. When John refuses to give Ruth a divorce, David shoots him. Before Ruth and ...

Tammy and the Bachelor
1957
as Professor Brent
An unsophisticated young woman from the Mississippi swamps falls in love with an unconventional southern gentleman.

Accused of Murder
1956
as Frank Hobart
A police detective finds himself entangled in the web of the underworld when he falls in love with a nightclub singer accused of murdering a crooked l...

The Little Foxes
1956
as Ben
A tale of greed, one-upmanship, family distrust, abuse, apathy, and lost love, set in the deep south at the turn of the twentieth century.

Beyond a Reasonable Doubt
1956
as Austin Spencer
A newspaper publisher, wanting to prove a point about the insufficiency of circumstantial evidence, talks his possible son-in-law Tom into a hoax in a...

High Society
1956
as Seth Lord
With socialite Tracy Lord about to remarry, her ex-husband - with the help of a sympathetic reporter - has 48 hours to convince her that she really st...

The View from Pompey's Head
1955
as Garvin Wales
Anson Page, a lawyer with Southern roots leaves New York, his wife and his kids for Georgia. His assignment is to investigate the case of Garvin Wales...

The High and the Mighty
1954
as Humphrey Agnew
Dan Roman is a veteran pilot haunted by a tragic past. Now relegated to second-in-command cockpit assignments he finds himself on a routine Honolulu-t...

Johnny Dark
1954
as James Fielding
A young auto racer competes in a Canada-to-Mexico race in a car he designed himself. Director George Sherman's 1954 film stars Tony Curtis, Piper Laur...

Washington Story
1952
as Philip Emery
A reporter (Patricia Neal) suspects the "nice guy" image of a respected Congressman (Van Johnson) is all a facade and sets out to uncover the truth.

The San Francisco Story
1952
as Andrew Cain
After five years of being away, Rick Nelson (Joel McCrea) returns to San Francisco to find it filled with corruption - and crooked politicians. It isn...

People Will Talk
1951
as Arthur Higgins
Successful and well-liked, Dr. Noah Praetorius becomes the victim of a witchhunt at the hands of Professor Elwell, who disdains Praetorius's unorthodo...

Saturday's Hero
1951
as T.C. McCabe
A talented high school football player encounters trouble in a college program.

A Song Is Born
1948
as Adams
The story of seven scholars in search of an expert to teach them about swing music. They seem to have found the perfect candidate in winsome nightclub...

My Girl Tisa
1948
as Theodore Roosevelt
1905 was a period of heavy immigration from Europe to America before laws were passed restricting the flow of immigrants. Almost every character in th...

Duel in the Sun
1946
as The Lover
Beautiful half-breed Pearl Chavez becomes the ward of her dead father's first love and finds herself torn between her sons, one good and the other bad...

Wilson
1944
as Josephus Daniels
The political career of Woodrow Wilson is chronicled, beginning with his decision to leave his post at Princeton to run for Governor of New Jersey, an...

The Lady and the Monster
1944
as Eugene Fulton
A millionaire's brain is preserved after his death by a scientist and his two assistants, only to create a telepathic monster.

Buffalo Bill
1944
as Theodore Roosevelt (uncredited)
Scout William F. Cody marries a U.S. senator's daughter, fights the Cheyenne and leads a Wild West show.

Broadway Rhythm
1944
as Press Agent
Broadway producer Johnny Demming is only interested in big-name talent and scoffs that his sister, father and other small-time talent could be used in...

In Old Oklahoma
1943
as Teddy Roosevelt
Cowboy Dan Somers and oilman Jim "Hunk" Gardner compete for oil lease rights on Indian land in Oklahoma, as well as for the favors of schoolteacher Ca...

I Escaped from the Gestapo
1943
as Bergen
A forger is forced to work for a Nazi spy ring. His conscience gets the better of him, though, and he secretly conspires with the FBI to turn over the...

Murder in Times Square
1943
as George Nevins
An actor becomes a suspect in the murders of four New Yorkers injected with rattlesnake venom.

Quiet Please, Murder
1943
as Martin Cleaver
A forger steals and kills for a rare book from a library in order to make forgeries to sell to rich suckers.

Sabotage Squad
1942
as Carlyle Harrison
A police lieutenant and a patriotic professional gambler, rivals in life and love, combine efforts to corner a gang of Nazi saboteurs operating out of...

March On, America!
1942
as Theodore Roosevelt (archive footage) (uncredited)
The story of America from the Pilgrims in 1620 to the attack on Pearl Harbor by the Japanese. Americans always working for freedom.

Gallant Lady
1942
as Steve Carey
A female doctor is sent to prison for a mercy killing. She manages to escape, get married and lead a model life, but one day her secret is exposed.

Obliging Young Lady
1942
as Henry - George's Attorney
A woman attempts to shelter a young girl from the publicity surrounding her socialite parents' divorce.

Always in My Heart
1942
as Philip Ames
A man is pardoned from prison and returns to Santa Rita, CA to be with his family, but discovers his children have been told he's dead and his wife is...

The Panther's Claw
1942
as Police Commissioner Thatcher Colt
The police arrest a man climbing over the wall of a cemetery after midnight. He claims that he is being blackmailed and is following instructions he r...

Nazi Agent
1942
as Arnold Milbar
Humble stamp dealer Otto Becker has little to do with international politics, so when he receives a surprise visit from his estranged twin brother and...

Down Mexico Way
1941
as Ellery Gibson
Like 1940's Melody Ranch, the 1941 Gene Autry vehicle Down Mexico Way was designed as a "special", to be promoted separately from Autry's regular B-we...

The Officer and the Lady
1941
as Blake Standish
A woman who refuses to become involved with a dedicated police officer unknowingly dates a man who is in cahoots with a criminal mastermind.

The Feminine Touch
1941
as Freddie Bond
A college professor who believes there's no place for jealousy in modern marriage, John Hathaway (Don Ameche) moves with his wife, Julie (Rosalind Rus...

Ellery Queen and the Perfect Crime
1941
as Anthony Rhodes
Several days after one of his company's dams burst, ruining the life savings of several investors, a shady power company president is found stabbed to...

Angels with Broken Wings
1941
as Guy Barton
Charlotte Lord, a widow in her early forties and owner of Manhattan's smartest modiste shop, is about to marry Guy Barton, a wealthy businessman. But ...

Love Crazy
1941
as Lawyer George Renny
Circumstance, an old flame and a mother-in-law drive a happily married couple to the verge of divorce and insanity.

Rookies on Parade
1941
as Augustus Moody
The story details the misadventures of two itinerant songwriters named Duke (Crosby) and Cliff (Foy) as they try to survive Army boot camp. Intending ...

The Great Swindle
1941
as Dave Lennox
In this mystery, an insurance investigator must find the arsonists behind the burning of a warehouse. The detective does get some good photographs as ...

Murder Among Friends
1941
as Mr. Wheeler
A society doctor helps an insurance-company file clerk check deaths related to a big policy.

Cheers for Miss Bishop
1941
as John Stevens
Ella Bishop is an inhibited girl whose frustrations grow as she approaches womanhood. As a women, her ambitions to teach cause her to lose her only op...

Third Finger, Left Hand
1940
as Hughie Wheeler
Magazine editor Margot Merrick pretends to be married in order to avoid advances from male colleagues. Unfortunately, things don't go to plan when Jef...

I Want a Divorce
1940
as Erskine Brandon
Comedy about newlyweds wondering if their marriage was a mistake.

Dance, Girl, Dance
1940
as Puss in Boots
Judy O'Brien is an aspiring ballerina in a dance troupe. Also in the company is Bubbles, a brash mantrap who leaves the struggling troupe for a career...

Maryland
1940
as Spencer Danfield
A woman tormented by the hunting death of her husband forbids her son to have anything to do with horses. But when he falls for the daughter of his fa...

Framed
1940
as Tony Bowman
A young newspaper reporter finds himself framed for murder.

Teddy the Rough Rider
1940
as Theodore Roosevelt
This short follows the political career of Theodore Roosevelt, beginning in 1895, when he was appointed police commissioner of New York City. In 1897 ...

Law of the Pampas
1939
as Ralph Merritt
Hoppy and Lucky are headed to South America to deliver a heard of cattle. Bay guy Ralph Merritt gets in their way. For a while.

The Monroe Doctrine
1939
as Theodore Roosevelt
The story of President Monroe's response to attempts by Spain to interfere in South America.

Hotel for Women
1939
as McNeil
Guests at a women's residence club help a jilted small-town girl turn to modelling.

Land of Liberty
1939
as Theodore Roosevelt (edited from 'Teddy the Rough Rider')
This film tells the history of the United States from pre-Revolution through 1939.

Trapped in the Sky
1939
as Mann
In this exciting spy drama, enemy agents endeavor to steal the plans for a top secret silent aircraft. The plane's inventor wants to sell his inventio...

Unmarried
1939
as Cash Enright
Pals Pat Rogers and Slag Bailey try to collect a debt from Slag's recently deceased boxing promoter but wind up collecting his child, instead, and rai...

It's a Wonderful World
1939
as Al Mallon
Detective Guy Johnson's client, Willie Heywood, is framed for murder. While Guy hides him so he can catch the real killer, both of them are nabbed by ...

Within the Law
1939
as George Demarest
Shopgirl Mary Turner, sentenced to prison for someone else's theft, is released and takes revenge upon those who wronged her in powerful but lawful wa...

Fast and Loose
1939
as "Lucky" Nolan
The Sloanes tie murder to the theft of a Shakespeare manuscript.

Convict's Code
1939
as Gregory Warren
On parole after three years in prison, a football player encounters the man who framed him.

Trade Winds
1938
as Thomas Bruhme II
After committing a murder, Kay assumes a new identity and boards a ship. But, Kay is unaware that Sam, a skirt chasing detective, is following her and...

While New York Sleeps
1938
as Ralph Simmons
Newspaperman (Whalen) looks into the deaths of bond-carriers while romancing a show girl (Rogers).

Sharpshooters
1938
as Baron Orloff
Ace newsreel cameraman is working in a mythical European country when the king is assassinated. He gets his negatives out of the country and finds the...

Suez
1938
as Marquis Du Brey
Ferdinand de Lesseps, disappointed in love, is sent as a junior diplomat to the Isthmus of Suez, and realizes it's just the place for a canal.

Down on the Farm
1938
as Political Boss
Excitement runs high when a family's farm is chosen as the site for a big cornhusking contest.

Straight, Place and Show
1938
as 'Lucky' Braddock
The Ritz Brothers go to the race track. They raise training end entrance money in a wrestling match and help a young man train the horse of his fiancé...

Speed to Burn
1938
as Hastings
Horse racing provides the framework of this crime drama that centers on an orphan who has been raising a promising horse.

In Old Chicago
1938
as General Phil Sheridan
The O'Leary brothers -- honest Jack and roguish Dion -- become powerful figures, and eventually rivals, in Chicago on the eve of its Great Fire.

Thank You, Mr. Moto
1937
as Herr Eric Koeger
Mr. Moto Heads to China on a quest for seven ancient scrolls that reveal the location of Genghis Khan's tomb—a crypt filled with fabulous treasure! Bu...

Charlie Chan at Monte Carlo
1937
as Victor Karnoff
Although Charlie and Lee are in Monaco for an art exhibit, they become caught up in a feud between rival financiers which involves the Chan's in a web...

The Last Gangster
1937
as San Francisco Editor
A crime boss goes searching for his ex-wife and son after a ten-year prison stint. His old gang has other plans though, and use the child to try and m...

Heidi
1937
as Sesemann
Heidi is orphaned and her uncaring maternal Aunt Dete takes her to the mountains to live with her reclusive, grumpy paternal grandfather, Adolph Krame...

Wife, Doctor and Nurse
1937
as Dr. Gordon Therberg
Social butterfly marries Park Avenue doctor and learns that his nurse is in love with him.

The Women Men Marry
1937
as Walter Wiley
A newsman with a no-good wife exposes a religious racket with a newswoman who loves him.

This Is My Affair
1937
as President Theodore Roosevelt
President McKinley asks Lt. Richard L. Perry to go underground to identify some obviously very well briefed Mid-Western bank robbers based in Saint Pa...

Michael O'Halloran
1937
as Jim Mintum
A wealthy woman's wild lifestyle finally drives her husband to take their two children, move out of the house and file for divorce. Positive she'll lo...

John Meade's Woman
1937
as Rodney
"Teddy" Connor, a woman recently orphaned, leaves her uncle's Midwestern farm for Chicago, where she meets "lumber king" John Meade. John takes her in...

A Doctor's Diary
1937
as Dr. Anson Ludlow
A Doctor's Diary is told through the eyes of Dr. Dan Norris (John Trent), resident physician in a private hospital. In his search for a cure for spina...

Girl Overboard
1937
as Alex LeMaire
A beautiful girl on a passenger ship is suspected of murder.

The House of Secrets
1936
as Tom Starr
Two men stumble into an old mansion, and get involved with a crazed scientist, torture chambers and sinister medical experiments.

The President's Mystery
1936
as George Sartos
The screenplay for this mystery is based upon a story suggested to Liberty Magazine by President Franklin D. Roosevelt. It is the tale of a prominent ...

Missing Girls
1936
as Dan Collins
A couple of naïve girls get themselves unwittingly involved in the gambling racket in this Poverty Row production directed by the redoubtable Phil Ros...

Early to Bed
1936
as Rex Daniels
Chester Beatty and Tessie Weeks have been engaged for 5 years and going together for 15 years before that. Chester is reluctant to burden Tessie with ...

Florida Special
1936
as Jack Macklyn
A Florida-bound train is filled with romance and intrigue when one of the passengers disappears while carrying $11-million in unset jewels.

Woman Trap
1936
as Riley Ferguson
A gangland murder is the motivating factor of this fast-moving crime drama. George Murphy stars as reporter Kent Shevlin, whose investigation of the m...

Heart of the West
1936
as Big John Trumbull
Problems come in the form of one of Hopalong Cassidy's neighbors, but the matter is settled when Hoppy roots out the troublemaker.

Forced Landing
1935
as Tony Bernardi
In this high-flying mystery set aboard a cross-country flight to New York, some of the passengers are kidnappers who are trying to locate a hidden cac...
The Fire-Trap
1935
as Cedric McIntyre
An insurance investigator falls in love with a society girl, unaware that her uncle and his boss are conspiring to commit insurance fraud by overvalui...

False Pretenses
1935
as Kenneth Alden
A girl who's just lost her job meets a drunk millionaire on a bridge who's just lost his money. They go back to his house, and eventually come up with...

The Girl Who Came Back
1935
as Bill Rhodes
A counterfeiter gives up her life of crime and goes straight. She gets a job in a bank, but the members of her former gang hear about it and try to bl...

Streamline Express
1935
as Gilbert Landon
A disparate group of people meet as passengers on a superspeed train crossing the U.S. Aboard are a seductive blackmailer and the stage director he in...

Smart Girl
1935
as Harry Courtland
Socialite Pat Reynolds (Ida Lupino) is forced to become the "smart girl" of the title when her wealthy father commits suicide, leaving nothing but a p...

Shadows of the Orient
1935
as King Moss
A classic "B" featurette about "smugglin' in Chinamen for $300 a load"

Great God Gold
1935
as John Hart
Greed, ambition and hunger-for-power drive John Hart, a New-York-City stock-market broker, into crooked dealings and deception, but he doesn't realize...

Behind the Green Lights
1935
as Raymond Cortell
A police detective's (Norman Foster) lawyer girlfriend (Judith Allen) works for a crooked criminal lawyer (Sidney Blackmer).

The Little Colonel
1935
as Swazey
After Southern belle Elizabeth Lloyd runs off to marry Yankee Jack Sherman, her father, a former Confederate colonel during the Civil War, vows to nev...

A Notorious Gentleman
1935
A lawyer sets out to commit the perfect murder.

The President Vanishes
1934
as D.L. Voorman
The President Vanishes, released in the United Kingdom as Strange Conspiracy, is a 1934 American political drama film directed by William A. Wellman a...

Transatlantic Merry-Go-Round
1934
as Lee Lother
Underworld king Lee Lother has been killed aboard a ocean liner, several people could have been the murderer. There is his mistress Anya Roysen, a mar...

The Count of Monte Cristo
1934
as Mondego
After greedy men have Edmound Dantes unjustly imprisoned for 20 years for innocently delivering a letter entrusted to him, he escapes to revenge himse...

Down to Their Last Yacht
1934
as Barry Forbes
Left only with their yacht after going broke in the Great Depression, a high-society family sets sail for the South Seas. Screwball comedy, with songs...

This Man Is Mine
1934
as Mort Holmes
The seemingly happy relationship between Tony and Jim is threatened when his manipulative, seductive former fiancee visits.

Good-bye Love
1933
as Chester Hamilton
A sexy golddigger lands who she thinks is a wealthy big-game hunter from a royal family. What she doesn't know is that not only is he not wealthy, nor...

Deluge
1933
as Martin Webster
A massive earthquake strikes the United States, which destroys the West Coast and unleashes a massive flood that threatens to destroy the East Coast a...

The Wrecker
1933
as Tom Cummings
The Wrecker is a flinty-eyed demolition engineer named Regan (Jack Holt). While he's off on another assignment, Regan's wife Mary (Genevieve Tobin) an...

Cocktail Hour
1933
as Lawton
Cynthia Warren, independently wealthy through her ability as an illustrator and poster artist, rebels against the premise that every woman is destined...

From Hell to Heaven
1933
as Cliff Billings
The various residents and occupants of a resort hotel await the outcome of a horse race at a nearby track, as it will affect each of their lives in di...

The Lady Who Dared
1931
as Charles Townsend
A blackmailer falls in love with his female victim.

It's a Wise Child
1931
as Steve
In this comedy, a conservative family becomes alarmed when they begin believing their daughter is pregnant.

Woman Hungry
1931
as Geoffrey Brand
This film, believed lost, was based on William Vaughn Moody's 1906 play The Great Divide. The story was filmed as a silent film by MGM as The Great Di...

Little Caesar
1931
as Big Boy
A small-time hood shoots his way to the top, but how long can he stay there?

Mothers Cry
1930
as Mr. Gerald Hart
Having raised four children alone, widow Mary Williams still manages to love her eldest son, vicious and sadistic Danny Williams, who has led a life o...

Kismet
1930
as Wazir Mansur
Hajj, a rascally beggar on the periphery of the court of Baghdad, schemes to marry his daughter to royalty and to win the heart of the queen of the ca...

The Bad Man
1930
as Morgan Pell
Film version of a play about a Mexican bandit.

An Intimate Dinner in Celebration of Warner Bros. Silver Jubilee
1930
as Self
Mr. and Mrs. Warner Bros. Pictures and their precocious offspring, Little Miss Vitaphone, host a dinner in honor of Warner Bros. Silver Jubilee, atten...
Sweethearts and Wives
1930
as Anthony Peel
An aristocrat tries to prevent her sister's divorce by attempting to recover a diamond necklace, which is being used as incriminating evidence against...

Strictly Modern
1930
as Heath Desmond
Strictly Modern is a 1930 American pre-Code comedy film directed by William A. Seiter and starring Dorothy Mackaill and Sidney Blackmer. A lady noveli...

The Love Racket
1929
A beautiful girl exposes her shameful past to save the life of a girl she has never met.

A Most Immoral Lady
1929
as Humphrey Sergeant
Laura Sergeant (Leatrice Joy), together with her husband, Humphrey Sergeant (Sidney Blackmer) operates a scam scheme to extort money from millionaires...
Beating Back
1914
Oklahoma lawyer Al Jennings, whose father was a famous and respected judge, is enraged at the murder of his brother Ed, shot in the back by two killer...