Sheila McCarthy is a Canadian stage, film and television actress, singer and dancer, best known for playing Polly Vandersma in the feature film "I've Heard the Mermaids Singing", as well as supporting character Sarah Hamoudi (Cunningham) in the television series "Little Mosque on the Prairie". She's a graduate in Theatre and Art History from the University of Victoria, British Columbia, Canada. In her career, she's won 2 Genie Awards (film), 2 Gemini Awards (television), and 2 Dora Awards (theatre), along with multiple nominations.
| Movie | Dancing on the Elephant | Nora | 2026 |
| Movie | The Voices of Our Mother | Harriet | 2026 |
| Movie | Surfacing | Dawn | 2026 |
| Movie | All the Lost Ones | Dawn | 2025-04-18 |
| Movie | The Well | Gabriel | 2025-07-21 |
| Movie | Z-O-M-B-I-E-S 3 | Hologram Alien Scout | 2022-07-09 |
| Movie | Women Talking | Greta | 2022-12-23 |
| Movie | Christmas in Rockwell | Juniper | 2022-12-11 |
| Movie | Like a House on Fire | Katherine | 2021-03-26 |
| Movie | Stroke of Fate | Shirley | 2021-07-15 |
| Movie | The Middle Man | Mrs. Stout | 2021-09-17 |
| Movie | Anything for Jackson | Audrey Walsh | 2020-04-04 |
| Movie | The Broken Hearts Gallery | Cheryl Gulliver | 2020-09-11 |
| Movie | Christmas 9 to 5 | Rose Stark | 2019-11-24 |
| Series | The Umbrella Academy | Agnes | 2019-02-15 |
| Movie | Isabelle | Ann Pelway | 2019-05-24 |
| Movie | An Assortment of Christmas Tales in No Particular Order | Ellen | 2019-11-01 |
| Movie | The Christmas Club | Miss Maggie | 2019-11-27 |
| Movie | Level 16 | Mrs. Denison | 2018-02-20 |
| Movie | Still/Born | Sheila | 2018-02-09 |
| Movie | Considering Love and Other Magic | Veronica | 2017-11-17 |
| Movie | Cardinals | Valerie Walker | 2017-09-07 |
| Movie | Brace for Impact | Faradee Gilchrist | 2016-04-03 |
| Movie | Ice Girls | Aunt Ginger | 2016-03-11 |
| Movie | Milton's Secret | Luz | 2016-09-30 |
| Movie | A Fighting Man | Rose O'Connor | 2014-04-24 |
| Movie | Dear Viola | Peggy | 2014-03-16 |
| Movie | Algonquin | Rita | 2014-04-11 |
| Series | Orphan Black | Connie Hendrix (voice) | 2013-03-30 |
| Movie | Antiviral | Dev Harvey | 2012-09-19 |
| Movie | Year of the Carnivore | Mrs. Smalls | 2009-05-01 |
| Movie | Breakfast with Scot | Miss Patterson (uncredited) | 2007-11-16 |
| Movie | The Stone Angel | Doris | 2007-09-12 |
| Series | Little Mosque on the Prairie | Sarah Hamoudi | 2007-01-09 |
| Movie | Cow Belles | Fran Walker | 2006-03-24 |
| Movie | Bailey's Billion$ | Peggy Delaney | 2005-08-05 |
| Movie | Geraldine's Fortune | Tina Larose | 2004-10-22 |
| Movie | Being Julia | Grace Dexter | 2004-09-03 |
| Movie | Weird Sex and Snowshoes: A Trek Through the Canadian Cinematic Psyche | Polly Vandersma (archive footage) | 2004-01-01 |
| Movie | The Day After Tomorrow | Judith | 2004-05-26 |
| Movie | Confessions of a Teenage Drama Queen | Mrs. Gerard | 2004-02-17 |
| Movie | Full-Court Miracle | Mrs. Klein | 2003-11-21 |
| Movie | Duct Tape Forever | Easterbrook (uncredited) | 2002-04-12 |
| Movie | The Rats | Miss Paige | 2002-09-17 |
| Movie | Lathe of Heaven | Penny | 2002-09-08 |
| Series | Puppets Who Kill | Unknown | 2002-10-04 |
| Movie | Rare Birds | Claire | 2001-09-09 |
| Movie | Haven | Eva | 2001-02-11 |
| Movie | Custody of the Heart | Alice | 2000-08-28 |
| Series | Marvin the Tap-Dancing Horse | Elizabeth the Emotional Pig (voice) | 2000-09-30 |
| Movie | Virtual Mom | Holly | 2000-01-01 |
| Movie | You Know My Name | Mrs. Lynn | 1999-08-22 |
| Series | Too Rich: The Secret Life of Doris Duke | Tammy | 1999-02-21 |
| Movie | Dead Husbands | Jane Armitage | 1998-12-02 |
| Series | Emily of New Moon | Laura Murray | 1998-01-04 |
| Movie | Shadow Zone: My Teacher Ate My Homework | Jesse's Mom | 1997-01-01 |
| Movie | House Arrest | Gwenna Krupp | 1996-08-14 |
| Movie | The Possession of Michael D. | Jenny | 1995-05-02 |
| Series | A Woman of Independent Means | Totsie | 1995-02-19 |
| Movie | The Awakening | Nancy | 1995-11-04 |
| Movie | The Biggest Little Ticket | The Troll | 1994-04-01 |
| Movie | Menendez: A Killing in Beverly Hills | Jill Lansing | 1994-05-22 |
| Movie | The Lotus Eaters | Diana Kingswood | 1993-09-12 |
| Movie | A Private Matter | Diane Callaghan | 1992-06-20 |
| Movie | Beethoven Lives Upstairs | Sophie | 1992-09-30 |
| Movie | Liza Minnelli - Live from Radio City Music Hall | Self | 1992-12-06 |
| Movie | Montreal Stories | Ann Stuart | 1991-11-08 |
| Movie | Paradise | Sally Pike | 1991-09-18 |
| Movie | Stepping Out | Andy | 1991-10-11 |
| Movie | Beautiful Dreamers | Molly Jessop | 1990-06-05 |
| Movie | Pacific Heights | Liz Hamilton | 1990-09-28 |
| Movie | Bright Angel | Nina | 1990-11-01 |
| Movie | White Room | Zelda | 1990-09-06 |
| Movie | Die Hard 2 | Samantha 'Sam' Coleman | 1990-07-03 |
| Movie | George's Island | Miss Birdwood | 1989-08-15 |
| Movie | Friends, Lovers, & Lunatics | Kathy | 1989-11-10 |
| Movie | I've Heard the Mermaids Singing | Polly Vandersma | 1987-09-11 |
| Movie | The Marriage Bed | Lynn Reailly | 1986-12-22 |
| Series | Four on the Floor | 1986-06-13 | |
| Movie | Really Weird Tales | Ellie Hutchins (segment "Cursed With Charisma") | 1986-10-04 |
| Movie | 9B | Heather | 1986-09-06 |
| Series | The Ray Bradbury Theater | Unknown | 1985-05-21 |
| Series | The New Alfred Hitchcock Presents | Unknown | 1985-09-29 |