Biography
Kathleen Erin "Kate" Walsh (born October 13, 1967) is an American film and television actress, currently known for her role as Dr. Addison Montgomery on the ABC dramas Grey's Anatomy and Private Practice.
Known For
Complete Filmography

The Dog
2024
as Claire
Over the course of one night at a 24-hour clinic, struggling veterinarian Claire contends with the pressures of her shift and a persistent inner turmo...

Sting
2024
as Sandy
After raising an unnervingly talented spider in secret, 12-year-old Charlotte must face the truth about her pet and fight for her family's survival.

Sometime Other than Now
2021
as Kate
Sam, who after his motorcycle is damaged in an apparent crash into the ocean, becomes stranded in a small New England town, finds refuge at a run-down...

Honest Thief
2020
as Annie Wilkins
A bank robber tries to turn himself in because he's falling in love and wants to live an honest life...but when he realizes the Feds are more corrupt ...

3022
2019
as Jackie Miller
A group of astronauts living in the haunting emptiness of deep space struggle to cope after Earth suffers an extinction-level event.

Almost Love
2019
as Elizabeth
Adam and Marklin’s 5-year relationship has gone from a passionate flame to a simmer, forcing them to reconcile with each other’s shortcomings while th...

Ideal Home
2018
as Kate
A couple is going through marital troubles made worse when a previously unknown grandson shows up.

Mark Felt: The Man Who Brought Down the White House
2017
as Pat Miller
The story of Mark Felt, who under the name "Deep Throat" helped journalists Bob Woodward and Carl Bernstein uncover the Watergate scandal in 1974.

If I Forget
2017
as Holly Fischer
A play about the stories we choose to believe, the compromises we can't avoid and the hurt only our nearest and dearest can inflict. In the final mon...

Girls Trip
2017
as Elizabeth Davelli
Four girlfriends take a trip to New Orleans for an annual festival and, along the way, rediscover their wild sides and strengthen the bonds of sisterh...

#realityhigh
2017
as Dr. Fiona Shively
When nerdy high schooler Dani finally attracts the interest of her longtime crush, she lands in the cross hairs of his ex, a social media celebrity.

Staten Island Summer
2015
as Danny's Mom
Pals Danny and Frank spend the summer after high school working as lifeguards while figuring out their future.

Just Before I Go
2015
as Kathleen Morgan
Ted Morgan has been treading water for most of his life. After his wife leaves him, Ted realizes he has nothing left to live for. Summoning the coura...

Comedy Central Roast of Justin Bieber
2015
as Self
Several roasters, and the master himself Kevin Hart, make fun of Justin Bieber.

Any Day
2015
as Bethley
Following his release from prison, an ex-fighter meets a woman who helps him put his life back together.

Desiree
2014
as Morell
An inspired experimental chemist, wakes up in a New Orleans jail, accused of arson that's linked to an illegal drug-manufacturing ring. Suffering from...

Scary Movie 5
2013
as Self
Home with their newly-formed family, happy parents Dan and Jody are haunted by sinister, paranormal activities. Determined to expel the insidious forc...

The Perks of Being a Wallflower
2012
as Mother
Pittsburgh, Pennsylvania, 1991. High school freshman Charlie is a wallflower, always watching life from the sidelines, until two senior students, Sam ...

Angels Crest
2011
as Roxanne
The small working-class town of Angels Crest is a tight-knit community resting quietly in one of the vast and stunningly beautiful valleys of the Rock...

Comedy Central Roast of Charlie Sheen
2011
as Self - Roaster
It's Charlie Sheen's turn to step in to the celebrity hot seat for the latest installment of The Comedy Central Roast.

Legion
2010
as Sandra Anderson
When God loses faith in humankind, he sends his legion of angels to bring on the Apocalypse. Humanity's only hope for survival lies in a group of stra...

One Way to Valhalla
2009
as Raina
Bo Durant, a volatile, working-class gearhead, sees himself trapped in a world with few possibilities but when he falls off his stepdaughter's bike, s...

1408
2007
as Mike Enslin's Ex-wife (uncredited)
A man who specializes in debunking paranormal occurrences checks into the fabled room 1408 in the Dolphin Hotel. Soon after settling in, he confronts ...

Veritas, Prince of Truth
2007
as Nemesii
Kern has to fight an evil menace that could destroy the earth when Veritas, his favorite comic book hero, comes to life and seeks his help.

Asssscat
2007
as Monologist
On the heels of their enormously popular TV show, the Upright Citizens Brigade (Matt Besser, Amy Poehler, Ian Roberts, Matt Walsh) bring you Asssscat ...
Girl Missing
2007
as Abbie Pennington
Jack Penniman's sister Lucy died in a boating mishap more than a decade ago and the event continues to consume him as an adult. While helping New York...

Bewitched
2005
as Sexy Waitress
Thinking he can overshadow an unknown actress in the part, an egocentric actor unknowingly gets a witch cast in an upcoming television remake of the c...

Inside Out
2005
as Tyne
Families in an idyllic suburban neighborhood are taunted by a mysterious doctor who moves in to town and spins a web of psychological chaos that chang...

Kicking & Screaming
2005
as Barbara Weston
Phil Weston has been unathletic his entire life. In college he failed at every sport that he tried out for. It looks like his 10-year old son, Sam, is...

Wake Up, Ron Burgundy: The Lost Movie
2004
as Sue
While Ron Burgundy's rivalry with Veronica Corningstone escalates quickly, a group of unprofessional thieves better known as 'The Alarm Clock' try to ...

After the Sunset
2004
as Sheila
An FBI agent is suspicious of two master thieves, quietly enjoying their retirement near what may - or may not - be the biggest score of their careers...

Under the Tuscan Sun
2003
as Grace
After a rough divorce, Frances, a 35-year-old professor and writer from San Francisco takes a tour of Tuscany at the urgings of her friends. On a whim...

The Family Man
2000
as Jeannie
Jack's lavish, fast-paced lifestyle changes one Christmas night when he stumbles into a grocery store holdup and disarms the gunman. The next morning ...

Three Below Zero
1998
as Moriat Greenberg
People are trapped in the basement of a New York apartment building on the hottest day of the summer.

Peppermills
1998
as Lena
The theft of her 257 treasured peppermills leads a woman to reminisce about her past encounters.

Night of the Lawyers
1997
as Pressie Brooks
They are armed. They are dangerous. They are lawyers. A hard working emergency room doctor is being harassed by a firm on nasty lawyers. An encounter ...

Henry: Portrait of a Serial Killer, Part 2
1996
as Cricket
Henry has wandered into a small town looking for work and a place to stay. He gets a job delivering and cleaning porto-potties and moves in with a co-...

Normal Life
1996
as Cindy Anderson
Chris Anderson and his wife Pam live a fairly normal life until Chris loses his job on the police force and secretly turns to robbing banks to make hi...