Tiffany Dawn Thornton is an American former actress, radio personality, and singer-songwriter, who is best known for her role as Tawni Hart in the Disney Channel Original Series: Sonny with a Chance and So Random!.
- Hatching Pete - Jamie Wynn
- 8 Simple Rules - Marnie
- Desperate Housewives - Barbie
- That's So Raven - Tyler Sparks
- Hannah Montana - Becky
- Wizards of Waverly Place - Susan
- Sonny with a Chance - Tawni Hart
- So Random! - Tawni Hart
- Fish Hooks - Doris Flores Gorgeous
- Kick Buttowski: Surburban Daredevil - Teena Sometimes
- Disney's Friends for Change Games - Herself
- Pixie Hollow Games - Glimmer
- PrankStars - Herself
- Doc McStuffins - Xyla
- Disney Channel Playlist - "Let It Go" with Mitchel Musso
- Snow White and the Seven Dwarfs: Diamond Edition DVD/Blu-ray - "Someday My Prince Will Come"
- Tinker Bell and the Lost Treasure - "Magic Mirror"
- "I Believe" with Kermit the Frog
- Disneymania 7 - "If I Never Knew You"
- Sonny With A Chance - "Kiss Me” and "Sure Feels Like Love"
- So Random! - "Gift of Grammer"
Thornton also appeared in Demi Lovato's music video, "La La Land."