
Teresa Gallagher
Known for Acting · 68 credits
- Born
- 1971-04-23 (age 55)
- Place of birth
- New York City, New York, USA
- Also known as
- Tessa Gallagher · Theresa 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

The Amazing World of Gumball
2011
as Nicole Watterson (voice) / Margaret Robinson (voice)

Thomas & Friends
1984
as Emily / Rosie / Mavis (voice)

Octonauts
2010
as Dashi

Cars 2
2011
as Mater's Computer (voice)

The Creature Cases
2022
as (voice)

The Wonderfully Weird World of Gumball
2025
as Nicole Watterson (voice)
TV Shows (21)

The Amazing World of Gumball
2011
as Nicole Watterson (voice) / Margaret Robinson (voice)

Thomas & Friends
1984
as Emily / Rosie / Mavis (voice)

Octonauts
2010
as Dashi

The Creature Cases
2022
as (voice)

The Wonderfully Weird World of Gumball
2025
as Nicole Watterson (voice)

Thunderbirds Are Go!
2015
as EOS (voice)

Footballers' Wives
2002
as Sarah Mortimer

Ronja, the Robber's Daughter
2014
as Ronja (voice, English version)

Poppy Cat
2011
as Egbert (voice)

Elliott from Earth
2021

Incredible Ant
2022
as Unity (voice)

The Gumball Chronicles
2020
as Nicole Watterson (voice)

JoJo & Gran Gran
2020
as Cynthia

Mama Mirabelle's Home Movies
2007
as Karla (voice)

Isadora Moon
2023

Mr Bloom's Nursery
2011

Get Squiggling!
2008

Fleabag Monkeyface
2011

Frankenstein's Cat
2007
as Sweeny

Magiki
2017
as Billie

Noddy in Toyland
2009
Movies (47)

Cars 2
2011
as Mater's Computer (voice)

The King's Speech
2010
as Nurse

The Jacket
2005
as Nurse Sally

Topsy-Turvy
1999
as Miss Coleford

Thomas & Friends: Sodor's Legend of the Lost Treasure: The Movie
2015
as Emily / Daisy / Annie / Clarabel (voice)

Thomas & Friends: Tale of the Brave
2014
as Emily / Rosie / Annie and Clarabel (voice)

Thomas & Friends: Journey Beyond Sodor
2017
as Emily / Annie and Clarabel (voice)

Thomas & Friends: Big World! Big Adventures! The Movie
2018
as Emily / Arizona Diesel / Annie and Clarabel / Rio Crane (voice) / Marion / Natalie / Arizona Diesel / Annie & Clarabel / Rio Crane (voice)

Postman Pat: The Movie
2014
as Lucy Selby (voice)

Thomas & Friends: King of the Railway
2013
as Emily / Belle / Annie and Clarabel (voice)

Thomas & Friends: Day of the Diesels
2011
as Emily / Mavis / Lady Hatt / Belle (voice)

Octonauts and the Caves of Sac Actun
2020
as Dashi/Ryla (Voice)

Spiked
2025
as Acorn Bunny (voice)

Thomas & Friends: The Great Race
2016
as Various (voice)

Thomas & Friends: Misty Island Rescue
2010
as Emily (voice)

Thomas & Friends: Hero of the Rails
2009
as Emily / Mavis / The Duchess Of Boxford (voice)

Octonauts and the Ring of Fire
2021
as Dashi (voice)

Thomas & Friends: Blue Mountain Mystery
2012
as Emily / Mavis / Annie and Clarabel (voice)

The Misadventures of Margaret
1998
as Astronaught #2

Thomas & Friends: Santa's Little Engine
2013
as Emily / Belle / Annie and Clarabel (voice)

Thomas and Friends: The Adventure Begins
2015
as Annie and Clarabel / Judy / The Passengers (voice)

Thomas & Friends: Tinsel on the Tracks
2016
as Annie / Clarabel / Passenger (voice)

Rainbow Magic: Return to Rainspell Island
2010
as Mrs. Walker / Queen Titania / Fern (Voice)

Octonauts and the Great Barrier Reef
2020
as Dashi (Voice)

Thomas & Friends: Pop Goes Thomas
2011

Thomas & Friends: Wobbly Wheels & Whistles
2011

Mike the Knight: Journey to Dragon Mountain
2014

Thomas & Friends: Trouble on the Tracks
2014
as Mavis / Annie and Clarabel (voice)

The Jungle Book: Return 2 the Jungle
2013

Thomas & Friends: Sticky Situations
2012
as Rosie / Mavis / Schoolchildren (voice)

Thomas & Friends: Steam Team to the Rescue
2020
as Emily / Belle / Annie / Clarabel (voice)

Thomas and Friends: Up Up & Away!
2012

Thomas & Friends: Spills & Thrills
2014
as Mavis / Annie & Clarabel / Lady Hatt (voice)

A Christmas Carol
2006
as Tiny Tim / Ghost of Christmas Past / Fan (voice)

The Jungle Book: The Movie
2013
as Darzi

Thomas & Friends: Splish, Splash, Splosh!
2010
Fink
2013
as Jake

Thomas & Friends: Extraordinary Engines
2017
as Annie and Clarabel / Judy / The Duchess of Boxford / Stephen Hatt / Bridget Hatt (voice)

Thomas & Friends: Muddy Matters
2013

Thomas & Friends: Tales on the Rails
2015
as Annie (voice) / Clarabel (voice)

Thomas & Friends: Whale of a Tale and Other Sodor Adventures
2015
as Emily / Belle / Annie and Clarabel / Stephen Hatt / Bridget Hatt / Passengers / Children (voice)

The Octonauts & the Great Summer Adventure
2023
as Dashi (voice)

Octonauts - 15 Underwater Adventures
2016
as Dashi

Thomas & Friends: Thomas & The Runaway Kite
2010

Thomas & Friends: Full Steam To The Rescue!
2016
as Emily (UK) / Belle (UK & US) / Annie and Clarabel (UK & US) / Albert's Wife (UK & US) (voice)
The Adventures Of Gumball
2012
as Nicole Watterson (voice)
Daddy Christmas
2014
About Teresa Gallagher
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 Tele… With 68 credits spanning from 1984 to 2025, Teresa Gallagher has appeared in 47 films and 21 TV shows.
Fans searching for Teresa Gallagher movies, Teresa Gallagher filmography, or the latest projects starring Teresa Gallagher can stream many of these titles on Bowood.TV, free and in HD, with no subscription required.
Most Popular Teresa Gallagher Movies
- Cars 2 (2011) — as Mater's Computer (voice)
- The King's Speech (2010) — as Nurse
- The Jacket (2005) — as Nurse Sally
- Topsy-Turvy (1999) — as Miss Coleford
- Thomas & Friends: Sodor's Legend of the Lost Treasure: The Movie (2015) — as Emily / Daisy / Annie / Clarabel (voice)
Where to Watch Teresa Gallagher Films
Most Teresa Gallagher movies and series are available to stream on Bowood.TV in full HD, completely free and without signup. Browse the complete filmography above to jump directly to any title. For more films and the latest web series featuring Teresa Gallagher, check our movies catalogue and browse page.