Born: 23 April 1971
Place: New York City, New York, USA

Acting

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 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!.

As actor

Spiked

2025 · Acorn Bunny (voice)

The Octonauts & the Great Summer Adventure

2023 · Dashi (voice)

Octonauts & the Ring of Fire

2021 · Dashi (voice)

Thomas and Friends: The Super Engine

2021 · Stephen Hatt / Bridget Hatt / Annie / Clarabel / Emily (voice)

Octonauts and the Caves of Sac Actun

2020 · Dashi/Ryla (Voice)

Octonauts and the Great Barrier Reef

2020 · Dashi (Voice)

Thomas & Friends: Marvellous Machinery

2020 · Emily / Annie / Clarabel (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: Digs & Discoveries

2019 · Brenda (voice)

Thomas & Friends: Big World! Big Adventures! The Movie

2018 · Emily / Marion / Daisy / Natalie / American Diesel / Annie / Clarabel / Cassia (voice)

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: Journey Beyond Sodor

2017 · Emily / Annie / Clarabel (voice)

Thomas & Friends: Extraordinary Engines

2017 · Lady Hatt / Stephen Hatt / Bridget Hatt (voice) (uncredited)

Thomas & Friends: Christmas on Sodor

2017 · Annie / Clarabel / Lady Hatt / People / Belle / Mavis / Judy / Carolers / Children (voice)

Thomas & Friends: Tales from the Rails

2017 · Children / Annie / Clarabel / Emily (voice)

Octonauts - 15 Underwater Adventures

2016 · Dashi

Thomas & Friends: The Great Race

2016 · Emily / Belle / Frieda / Gina / Daisy / Marion / Annie / Clarabel (voice)

Thomas & Friends: Start Your Engines!

2016 · Annie / Clarabel / Barrow Soccer Fan (voice)

Thomas & Friends: Tinsel on the Tracks

2016 · Annie / Clarabel / Passenger (voice)

Thomas & Friends: Full Steam to the Rescue!

2016 · Belle / Emily / Annie / Clarabel / Albert's Wife (voice)

Thomas and Friends: Ultimate Friendship Adventures

2016 · Annie / Clarabel / Belle / Albert's Wife (voice)

Thomas and Friends: The Adventure Begins

2015 · Annie / Clarabel / Judy / Children (voice)

Thomas & Friends: Sodor's Legend of the Lost Treasure: The Movie

2015 · Emily / Daisy / Annie / Clarabel / Children (voice)

Thomas & Friends: Whale of a Tale and Other Sodor Adventures

2015 · Belle / Annie / Clarabel / Schoolchildren / Stephen Hatt / Bridget Hatt (voice)

Thomas & Friends: Thomas' Christmas Carol

2015 · Children (voice)

Thomas & Friends: Tales on the Rails

2015 · Annie / Clarabel / Children / Mavis (voice)

Thomas & Friends: Dinos and Discoveries

2015 · Annie / Clarabel / Emily (voice)

Thomas & Friends: 1st Class Stories

2015 · Emily / Mavis / Children / Duchess of Boxford / Little Boy / Passengers / Annie / Clarabel (voice)