Mary-Colin Chisholm is a Canadian actress, playwright, and co-assistant director of the theatre companies LunaSea Theatre and Frankie Productions.
In 2000, Chisholm directed the theatrical piece called Frankie, starring Mary Ellen Maclean. Christian Murray coached movement and provided sound for the play and the three later founded the theatre company Frankie Productions. Chisholm was then commissioned to write the CBC radio series He'd Be Your Mother’s Father’s Cousin, which she later adapted to for the stage.
In 2005, Chisholm appeared as Christine in Daniel MacIvor's How It Works. Chisholm performed in a co-op production of The Donahue Sisters by Geraldine Aron at the TNS Studio Space in Halifax in 2006. Four of the actors later decided to form a theatre company which was incorporated in 2007 as LunaSea Theatre. The company has performed, amongst others, Chisholm's To Capture Light, Alan Bennett's Talking Heads, and an all-woman production of Twelfth Night (2009).
In 2008, Chisholm performed in Christian Murray's play, Bone Boy, as the mother of a child brought to life from a tooth.
In 2010, Chisholm played the emergency medical technician, Eleanor Carr, in the SyFy-produced TV series Haven and she also appeared in the Canadian thriller The Corridor.
Chisholm directed Lauchie, Liza and Rory by Sheldon Currie in 2010 for the Eastern Front Theatre and in 2011 for the Mulgrave Road Theatre, in association with Frankie Productions at the National Arts Centre in Ottawa. She also performed in Caryl Churchill's Top Girls for the LunaSea Theatre, as well as in Michel Nadeau's And Slowly Beauty ... playing the waitress Anita.
In 2012, Chisholm performed the role of God in the play, Creation, and in a one-woman version of her play He'd Be Your Mother's Father's Cousin at Festival Antigonish.