
Seán M. Cullen (born in 1965) is a Canadian award-winning comedian, actor, author, and screenwriter, known for The Willoughbys (2019), Cloudy with a Chance of Meatballs (2017-2018), Phil the Alien (2004), and The Seán Cullen Show (2003). He has performed stand up internationally, and has several Just For Laughs specials to his name. He is also known for providing voices of characters in shows like Best Ed, Seven Little Monsters, and Almost Naked Animals.
He is a triple Gemini and Canadian Comedy Award winner.

Champions
2023 · as Frank O'Connolly

The Love Guru
2008 · as Referee

The Willoughbys
2020 · as Barnaby Twins (voice)

Snoopy Presents: A Summer Musical
2025 · as Bird Bud 1 (voice)

Skin
2019 · as Dr. Bruce Shack

Where the Truth Lies
2005 · as Telethon Announcer

Cabrini
2024 · as Peterson

Bang Bang Baby
2014 · as Jack Avery

Odd Squad: The Movie
2016 · as Mayor Macklemore

Snowbound for the Holidays
2026 · as Dave Asherton

Phil the Alien
2004 · as Sammy the Alien

The Twentieth Century
2019 · as Lord Muto

Burnt Toast
2005 · as Charles

'Twas the Date Before Christmas
2024 · as Marcus

Terror and Tiaras
as Gus, Princess Echo, Cheese Narrator

On the Q.T.
1999 · as Henri

Abroad
2010 · as Max Hardman

The Legend of Beaver Dam
2010 · as Pathmaster