Teresa Gallagher
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!.
Known For
TV
The Amazing World of Gumball
Nicole Watterson (voice)
2011
TV
Thomas & Friends
Emily / Rosie / Mavis (voice)
1984
TV
Octonauts
Dashi
2010
TV
The Creature Cases
(voice)
2022
TV
The Wonderfully Weird World of Gumball
Nicole Watterson (voice)
2025
Film
Cars 2
Mater's Computer (voice)
2011
TV
Footballers' Wives
Sarah Mortimer
2002
TV
Footballers' Wives
Sarah
2002
TV
Thunderbirds Are Go!
EOS (voice)
2015
TV
Isadora Moon
2023
TV
Incredible Ant
Unity (voice)
2022
Film
The King's Speech
Nurse
2010
TV
Poppy Cat
Egbert (voice)
2011
TV
JoJo & Gran Gran
Cynthia
2020
TV
Noddy in Toyland
2009
TV
Ronja, the Robber's Daughter
Ronja (voice, English version)
2014
TV
Fleabag Monkeyface
2011
TV
The Gumball Chronicles
Nicole Watterson (voice)
2020
TV
Get Squiggling!
2008
TV
Mama Mirabelle's Home Movies
Karla (voice)
2007
Filmography
2025TVThe Wonderfully Weird World of Gumballas Nicole Watterson (voice)2023TVIsadora Moon2023FilmThe Octonauts & the Great Summer Adventureas Dashi (voice)2022TVIncredible Antas Unity (voice)2022TVThe Creature Casesas (voice)2021TVElliott from Earth2021FilmOctonauts and the Ring of Fireas Dashi (voice)2020FilmOctonauts and the Great Barrier Reefas Dashi (Voice)2020TVThe Gumball Chroniclesas Nicole Watterson (voice)2020FilmOctonauts and the Caves of Sac Actunas Dashi/Ryla (Voice)2020TVJoJo & Gran Granas Cynthia2020FilmThomas & Friends: Steam Team to the Rescueas Emily / Belle / Annie / Clarabel (voice)2018FilmThomas & Friends: Big World! Big Adventures! The Movieas Emily / Arizona Diesel / Annie and Clarabel / Rio Crane (voice)2017FilmThomas & Friends: Journey Beyond Sodoras Emily / Annie and Clarabel (voice)2017FilmThomas & Friends: Extraordinary Enginesas Annie and Clarabel / Judy / The Duchess of Boxford / Stephen Hatt / Bridget Hatt (voice)2017TVMagikias Billie2016FilmOctonauts - 15 Underwater Adventuresas Dashi2016FilmThomas & Friends: Full Steam To The Rescue!as Emily (UK) / Belle (UK & US) / Annie and Clarabel (UK & US) / Albert's Wife (UK & US) (voice)2016FilmThomas & Friends: Tinsel on the Tracksas Annie / Clarabel / Passenger (voice)2016FilmThomas & Friends: The Great Raceas Various (voice)2015FilmThomas & Friends: Tales on the Railsas Annie (voice) / Clarabel (voice)2015FilmThomas & Friends: Sodor's Legend of the Lost Treasure: The Movieas Emily / Daisy / Annie / Clarabel (voice)2015FilmThomas & Friends: Whale of a Tale and Other Sodor Adventuresas Emily / Belle / Annie and Clarabel / Stephen Hatt / Bridget Hatt / Passengers / Children (voice)2015TVThunderbirds Are Go!as EOS (voice)2015FilmThomas and Friends: The Adventure Beginsas Annie and Clarabel / Judy / The Passengers (voice)2014FilmDaddy Christmas2014TVRonja, the Robber's Daughteras Ronja (voice, English version)2014FilmMike the Knight: Journey to Dragon Mountain2014FilmThomas & Friends: Tale of the Braveas Emily / Rosie / Annie and Clarabel (voice)2014FilmPostman Pat: The Movieas Lucy Selby (voice)2014FilmThomas & Friends: Trouble on the Tracksas Mavis / Annie and Clarabel (voice)2014FilmThomas & Friends: Spills & Thrillsas Mavis / Annie & Clarabel / Lady Hatt (voice)2013FilmFinkas Jake2013FilmThomas & Friends: Santa's Little Engineas Emily / Belle / Annie and Clarabel (voice)2013FilmThomas & Friends: King of the Railwayas Emily / Belle / Annie and Clarabel (voice)2013FilmThe Jungle Book: Return 2 the Jungle2013FilmThe Jungle Book: The Movieas Darzi2012FilmThe Adventures Of Gumballas Nicole Watterson (voice)2012FilmThomas & Friends: Blue Mountain Mysteryas Emily / Mavis (UK), Annie and Clarabel (voice)2011TVFleabag Monkeyface2011FilmThomas & Friends: Day of the Dieselsas Emily / Mavis / Lady Hatt (UK), Belle (voice)2011FilmCars 2as Mater's Computer (voice)2011TVThe Amazing World of Gumballas Nicole Watterson (voice)2011TVPoppy Catas Egbert (voice)2011TVMr Bloom's Nursery2010FilmThe King's Speechas Nurse2010TVOctonautsas Dashi2010FilmThomas & Friends: Misty Island Rescueas Emily (UK) (voice)2010FilmRainbow Magic: Return to Rainspell Islandas Mrs. Walker / Queen Titania / Fern (Voice)2009FilmThomas & Friends: Hero of the Railsas Emily (UK) / Mavis (UK) / The Duchess Of Boxford (UK) (voice)2009TVNoddy in Toyland2008TVGet Squiggling!2007TVFrankenstein's Catas Sweeny2007TVMama Mirabelle's Home Moviesas Karla (voice)2006FilmA Christmas Carolas Tiny Tim / Ghost of Christmas Past / Fan (voice)2005FilmThe Jacketas Nurse Sally2002TVFootballers' Wivesas Sarah Mortimer1999FilmTopsy-Turvyas Miss Coleford1998FilmThe Misadventures of Margaretas Astronaught #21984TVThomas & Friendsas Emily / Rosie / Mavis (voice)