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Mark David Duplass (born December 7, 1976) is an American filmmaker, actor, writer, and musician. With his brother Jay Duplass, he started the film production company Duplass Brothers Productions in 1996, for which they wrote and directed The Puffy Chair (2005), Baghead (2008), Cyrus (2010), Jeff, Who Lives at Home (2011), and The Do-Deca-Pentathlon (2012). Duplass co-wrote and starred in the horror film Creep (2014) and its sequel Creep 2 (2017), as well as the television spin-off The Creep Tapes (2024). He co-wrote and co-produced the television anthology series Room 104 (2017–2020). His other acting credits include Humpday (2009), The League (2009–2015), Greenberg (2010), Safety Not Guaranteed (2012), The One I Love (2014), The Lazarus Effect (2015), Togetherness (2015–2016), Blue Jay (2016), Tully (2018), Goliath (2018–2019), Paddleton (2019), and Language Lessons (2021). For his portrayal of Charlie "Chip" Black in The Morning Show (2019–present), Duplass received two nominations for the Primetime Emmy Award for Outstanding Supporting Actor in a Drama Series. He was also the lead singer of the indie rock band Volcano, I'm Still Excited!! Description above from the Wikipedia article Mark Duplass, licensed under CC-BY-SA, full list of contributors on Wikipedia.

Backrooms
as Phil

Mating Season
as Connor (voice)

Mine

The Creep Tapes Season 2
as Peachfuzz

Noah Britton: The Best Stuff I've Ever Done
as The Narrator (voice)

Under the Lights
as Principal Mark Karen

Hurricanna

Good American Family
as Michael Barnett

Hollywood Squares
as Self

The Creep Tapes
as Peachfuzz

Oh, Christmas Tree
as Ben

Grave Conversations
as Self
The Long Long Night

After Midnight
as Self

Biosphere
as Billy

Celebrity Jeopardy!
as Self - Contestant

Wes Is Dying
as Mark

Pretzel and the Puppies
as Pretzel (voice)

About Last Night
as Self

7 Days
as Daddy (voice)

Language Lessons
as Adam

Calls
as Patrick (voice)

Celebrity Wheel of Fortune
as Self - Contestant

Her Effortless Brilliance: A Celebration of Lynn Shelton Through Film and Music
as Self

When the Streetlights Go On
as Mr. Carpenter

Bombshell
as Doug Brunt

The Morning Show
as Charlie 'Chip' Black

Paddleton
as Michael

Love Sonia
as Man in LA

Tully
as Craig

Duck Butter
as Mark

Creep 2
as Aaron

Big Mouth
as Val Bilzerian (voice)

Manhunt
as David Kaczynski

Room 104
as Graham Husker

Goliath
as Tom Wyatt

Blue Jay
as Jim

The $100,000 Pyramid
as Self

Match Game
as Self - Panelist

To Tell the Truth
as Self - Panelist

The Late Late Show with James Corden
as Self

The Lazarus Effect
as Frank Walton

Togetherness
as Brett Pierson

21 Years: Richard Linklater
as Self - Filmmaker

Mercy
as Uncle Lanning

The One I Love
as Ethan

Tammy
as Bobby

Creep
as Josef

Off Camera with Sam Jones
as Self

Parkland
as Kenneth O'Donnell

Maron
as Himself

Zero Dark Thirty
as Steve

The Mindy Project
as Brendan Deslaurier

People Like Us
as Ted

Safety Not Guaranteed
as Kenneth

Comedy Bang! Bang!
as Self

Darling Companion
as Bryan

The First A.D.

Your Sister's Sister
as Jack

Mars
as Charlie Brownsville