Full cast of Thunderbirds Are Go!

Kayvan Novak

Brains / GDF Commander (voice) / Brains / Dr. Meddings (voice)

104 episodes

Rasmus Hardiker

Scott Tracy / Alan Tracy (voice)

78 episodes

Chris Jarman

The Mechanic / Hutch (voice)

78 episodes

David Menkin

Virgil Tracy / Gordon Tracy (voice)

78 episodes

David Graham

Parker / Vic (voice)

78 episodes

Sandra Dickinson

Grandma Tracy (voice)

78 episodes

Jenna Coleman

Baines (voice)

78 episodes

Adjoa Andoh

Colonel Casey (voice)

78 episodes

Thomas Brodie-Sangster

John Tracy (voice)

78 episodes

Angel Coulby

Kayo (voice)

78 episodes

Rosamund Pike

Lady Penelope (voice)

78 episodes

Teresa Gallagher

EOS (voice)

78 episodes

Tom Rosenthal

Brandon Berrenger (voice)

1 episode

Jack Whitehall

Francois Lemaire (voice)

1 episode

Reece Pockney

Paul Travers (voice)

1 episode

Mark Gatiss

Dr. Quentin Questa (voice)

1 episode

Asa Butterfield

Space Controller Conrad (Voice)

1 episode

David Tennant

Tyco Reeves (Voice)

1 episode

Emilia Clarke

Doyle (Voice)

1 episode

Sylvester McCoy

Aezethril the Wizard (voice)

1 episode

Lee Majors

Jeff Tracey (voice)

1 episode

Mathew Baynton

Jimmy (voice) / Crewman Hooper (voice)

1 episode

Massimo Marinoni

Banino (voice)

1 episode

Taj Atwal

Madeline Lemaire (voice)

1 episode