

Biography
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).
Known For
Backrooms (2026)Age: 50
Under the Lights (2025)Age: 49as Principal Mark Karen
Noah Britton: The Best Stuff I've Ever Done (2025)Age: 49as The Narrator (voice)
Good American Family (2025)Age: 49as Michael Barnett
Oh, Christmas Tree (2024)Age: 48as Ben
The Long Long Night (2024)Age: 48
The Creep Tapes (2024)Age: 48as Peachfuzz
Biosphere (2023)Age: 47as Billy
Wes Is Dying (2022)Age: 46as Mark
Pretzel and the Puppies (2022)Age: 46as Pretzel (voice)






