Biography
Teresa Gallagher is an American-born British actress, voice actress, and singer who is known for her roles in several animated television shows, such as Nicole Watterson, Margaret Robinson, Penny Fitzgerald, and various characters in The Amazing World of Gumball; Annie, Clarabel, Emily, Rosie, Mavis, Gina, Frieda, and numerous characters in Thomas & Friends; Egbert and Gilda in Poppy Cat; EOS and various guest characters in Thunderbirds Are Go; Elias and Helinor in Elias: Rescue Team Adventures; and the Tiddlytubbies in the 2015 reboot of Teletubbies.
For Disney, she voiced Mater's computer in Disney/Pixar's Cars 2 and its video game; the titular character in the U.K. version of Henry Hugglemonster; Dashi in the Disney Junior British series The Octonauts; and Jessica Wright, Mallory, and Lolo Calorie in the Disney XD British/French series Dude, That's My Ghost!.
Filmography
Cast Credits
The Wonderfully Weird World of Gumball
Character: Nicole Watterson (voice)
TV • 2025
Isadora Moon
Character:
TV • 2023
The Octonauts & the Great Summer Adventure
Character: Dashi (voice)
MOVIE • 2023
Incredible Ant
Character: Unity (voice)
TV • 2022
The Creature Cases
Character: (voice)
TV • 2022
Elliott from Earth
Character:
TV • 2021
Octonauts and the Ring of Fire
Character: Dashi (voice)
MOVIE • 2021
Octonauts and the Great Barrier Reef
Character: Dashi (Voice)
MOVIE • 2020
The Gumball Chronicles
Character: Nicole Watterson (voice)
TV • 2020
Octonauts and the Caves of Sac Actun
Character: Dashi/Ryla (Voice)
MOVIE • 2020
JoJo & Gran Gran
Character: Cynthia
TV • 2020
Thomas & Friends: Big World! Big Adventures! The Movie
Character: Emily / Arizona Diesel / Annie and Clarabel / Rio Crane (voice)
MOVIE • 2018
Thomas & Friends: Big World! Big Adventures! The Movie
Character: Marion / Natalie / Arizona Diesel / Annie & Clarabel / Rio Crane (voice)
MOVIE • 2018
Thomas & Friends: Journey Beyond Sodor - The Movie
Character: Emily / Annie and Clarabel (voice)
MOVIE • 2017
Thomas & Friends: Extraordinary Engines
Character: Annie and Clarabel / Judy / The Duchess of Boxford / Stephen Hatt / Bridget Hatt (voice)
MOVIE • 2017
Magiki
Character: Billie
TV • 2017
Octonauts - 15 Underwater Adventures
Character: Dashi
MOVIE • 2016
Thomas & Friends: Full Steam To The Rescue!
Character: Emily (UK) / Belle (UK & US) / Annie and Clarabel (UK & US) / Albert's Wife (UK & US) (voice)
MOVIE • 2016
Thomas & Friends: Tinsel on the Tracks
Character: Annie / Clarabel / Passenger (voice)
MOVIE • 2016
Thomas & Friends: The Great Race
Character: Various (voice)
MOVIE • 2016