Actor
Teresa Gallagher
55 years · New York City, New York, USA · 68 films
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!.
Best known for
The King's Speech
2010 · Nurse
Cars 2
2011 · Mater's Computer (voice)
On Disney Plus
The Jacket
2005 · Nurse Sally
On Plex
Topsy-Turvy
1999 · Miss Coleford
On HBO Max
Postman Pat: The Movie
2014 · Lucy Selby (voice)
Thomas & Friends: Big World! Big Adventures! The Movie
2018 · Emily / Marion / Daisy / Natalie / American Diesel / Annie / Clarabel / Cassia (voice)
On Amazon Prime Video
Filmography 68
Spiked
2025 · Acorn Bunny (voice)
The Octonauts & the Great Summer Adventure
2023 · Dashi (voice)
Thomas & Friends: Animal Adventures
2021 · Emily / Annie / Clarabel / Belle (voice)
Thomas and Friends: The Super Engine
2021 · Stephen Hatt / Bridget Hatt / Annie / Clarabel / Emily (voice)
Octonauts and the Ring of Fire
2021 · Dashi (voice)
On Netflix
Octonauts and the Great Barrier Reef
2020 · Dashi (Voice)
On Netflix
Thomas & Friends: Marvellous Machinery
2020 · Emily / Annie / Clarabel (voice)
Octonauts and the Caves of Sac Actun
2020 · Dashi/Ryla (Voice)
Thomas & Friends: Carnival Day!
2020 · Emily / Stephen Hatt / Bridget Hatt / Sodor Rangers (voice)
Thomas and Friends: The Royal Engine
2020 · Emily (voice)
Thomas & Friends: Steam Team to the Rescue
2020 · Emily / Belle / Annie / Clarabel / Teacher / Albert's Wife (voice)
Thomas & Friends: A Colourful World
2019 · Emily / Duchess of Boxford / Blonde Girl / Clarabel / Stephen Hatt / Bridget Hatt (voice)
Thomas & Friends: Digs & Discoveries
2019 · Brenda (voice)
Thomas & Friends: Monkey Trouble!
2019 · Emily / Judy / Annie / Clarabel / Lady Hatt (voice)
Thomas & Friends: Here Comes the Steam Team!
2018 · Emily / Belle / Annie / Clarabel / Stephen Hatt / Bridget Hatt / Passengers / Madeleine's Mother (voice)
Thomas & Friends: Big World! Big Adventures! The Movie
2018 · Emily / Marion / Daisy / Natalie / American Diesel / Annie / Clarabel / Cassia (voice)
On Amazon Prime Video
Thomas & Friends: On the Go with Thomas
2018 · Emily / Annie / Passengers / Clarabel / Albert's Wife (voice)
Thomas & Friends: Danger at the Docks
2018 · Emily / Passengers / Mavis / Judy / Albert's Wife (voice)
Thomas & Friends: Christmas on Sodor
2017 · Annie / Clarabel / Lady Hatt / People / Belle / Mavis / Judy / Carolers / Children (voice)
Thomas & Friends: Journey Beyond Sodor
2017 · Emily / Annie / Clarabel (voice)
Thomas & Friends: Extraordinary Engines
2017 · Lady Hatt / Stephen Hatt / Bridget Hatt (voice) (uncredited)
Thomas & Friends: Tales from the Rails
2017 · Children / Annie / Clarabel / Emily (voice)
Thomas and Friends: Ultimate Friendship Adventures
2016 · Annie / Clarabel / Belle / Albert's Wife (voice)
Octonauts - 15 Underwater Adventures
2016 · Dashi