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| Año | Título | Personaje | Valoración |
|---|---|---|---|
| 2023 | Junior’s Giant | Dale | ☆☆☆☆☆ |
| 2023 | Christmas by Candlelight | Grandma Ruth | ★★★★☆ |
| 2023 | Love Hacks | Lucy Tyler | ★★★☆☆ |
| 2022 | Baking All the Way | Vicky Weaver | ★★★☆☆ |
| 2022 | Homeschooled | Mrs. Rizzi | ☆☆☆☆☆ |
| 2022 | The Kids in the Hall | Donna | ★★★☆☆ |
| 2019 | Home in Time | Fran | ★☆☆☆☆ |
| 2018 | Carter | Gretchen Jacott | ★★★☆☆ |
| 2016 | Private Eyes | Deena Duncan | ★★★★☆ |
| 2016 | Baroness von Sketch Show | Roberta | ★★★★☆ |
| 2012 | Sunshine Sketches of a Little Town | Mrs. Pepperleigh | ★★★★☆ |
| 2011 | Single White Spenny | Sheila | ★☆☆☆☆ |
| 2009 | The Ron James Show | ☆☆☆☆☆ | |
| 2008 | Los misterios de Murdoch | Zinnia Hobson (as Deb McGrath) | ★★★★☆ |
| 2007 | Betsy Bubblegum's Journey Through Yummi-Land | Beaver Mom (voice) | ☆☆☆☆☆ |
| 2007 | Little Mosque on the Prairie | Mayor Ann Popowicz | ★★★☆☆ |
| 2006 | The Jane Show | Sally | ★★☆☆☆ |
| 2005 | Burnt Toast | Ursula | ☆☆☆☆☆ |
| 2005 | Getting Along Famously | Ruby Kendall | ☆☆☆☆☆ |
| 2004 | This Is Wonderland | Marty Klein | ★★★★★ |
| 2003 | Eloise at Christmastime | Cornelia the Owner's Secretary | ★★★☆☆ |
| 2003 | Eloise at the Plaza | Cornelia the Owner's Secretary | ★★★☆☆ |
| 2003 | 11-S: Tiempo de crisis | Mary Matalin | ★★★★☆ |
| 2002 | Expecting | Anita | ★☆☆☆☆ |
| 2001 | Paradise Falls | Shirley Armstrong | ★★☆☆☆ |
| 2001 | Degrassi: la nueva generación | NYU interviewer (as Deb McGrath) | ★★★★☆ |
| 2000 | Code Name: Eternity | Nurse | ★★★☆☆ |
| 2000 | Seven Little Monsters | Mama (voice) | ★★★★☆ |
| 1999 | George and Martha | ★★★★☆ | |
| 1998 | Una rubia auténtica | Cis | ★★★☆☆ |
| 1998 | Mr. Headmistress | Dawn | ★☆☆☆☆ |
| 1997 | The Wonderful World of Disney | Dawn | ★★★☆☆ |
| 1996 | Wind at My Back | Reenie Bigelow | ★★★★★ |
| 1994 | Due South | Tammy Markles | ★★★★☆ |
| 1994 | Robocop | Bambi Taker | ★★★☆☆ |
| 1993 | Partners 'n Love | Rosemary Hudson | ☆☆☆☆☆ |
| 1989 | Termini Station | Liz Dunshane | ★★☆☆☆ |
| 1987 | Street Legal | Real Estate Agent | ★★★★☆ |
| 1987 | Street Legal | Julia McCrindle | ★★★★☆ |
| 1986 | Really Weird Tales | Mother (segment "I'll Die Loving") | ★★★☆☆ |
| 1985 | Navidades mágicas | Mrs. Noonan | ★★★☆☆ |
| Año | Título | Trabajo | Calificación |
|---|---|---|---|
| 2023 | Junior’s Giant | Producer | ☆☆☆☆☆ |
| 2023 | Junior’s Giant | Writer | ☆☆☆☆☆ |
| 2005 | Getting Along Famously | Creator | ☆☆☆☆☆ |
Películas destacadas de Debra McGrath
Estas son las películas más destacadas en las que ha trabajdo:
Series
Las series más importantes en las que ha participado son las siguientes:
