| Year | Title | Role | Notes |
| 2007 | 12 Miles of Bad Road | Bethany | 3 episodes: "The Dirty White Girl" (season 1: episode 2) "Collateral Verbiage" (season 1: episode 4) "Moonshadow" (season 1: episode 6) |
| 2008–09 | Kath & Kim | Tina | Season 1 (recurring; 6 episodes) |
| 2009–present | The Big Bang Theory | Dr. Bernadette Rostenkowski-Wolowitz | Season 3 (recurring; 5 episodes) Season 4–present (series regular) |
| 2010 | The Office | Cathy Duke | 1 episode "The Delivery" |
| 2010 | True Blood | Summer | Season 3 (recurring; 6 episodes) |
| 2010 | Wright vs. Wrong | Daisy Cake | TV movie |
| 2014 | Jake and the Never Land Pirates | First-Mate Mollie (voice) | 1 episode "Smee-erella" |
| 2014 | Teenage Fairytale Dropouts | Miss Macabre | 1 episode "Something Wicked This Way Substitutes" |
| 2014 | The Hot Housewives of Orlando | Calliope | 1 episode |
| 2015 | Sofia the First | Fairy Tizzy (voice) | 1 episode |
| 2015 | Scooby-Doo! and the Beach Beastie | Kiki (voice) | TV Movie |
| 2017 | Star vs. the Forces of Evil | Baby (voice) | 1 episode |
| 2017 | Marvel's Ant-Man | The Wasp (voice) | 2 episodes |
| 2017 | Blaze and the Monster Machines | Light Thief (voice) | 1 episode |
| 2019 | Black Monday | Shira | 1 episode |