Peter Dyneley

Jeff Tracy (voice)

Shane Rimmer

Scott Tracy (voice)

David Holliday

Virgil Tracy (voice)

Jeremy Wilkin

Virgil Tracy / Cravitz (voice)

Matt Zimmerman

Alan Tracy / Ned Cook (voice)

David Graham

Brains / Gordon Tracy / Aloysius Parker / Kyrano / Joe / Clayton / 2nd Site Control Policeman (voice)

Sylvia Anderson

Lady Penelope (voice)

Christine Finn

Tin-Tin Kyrano (voice)

Ray Barrett

John Tracy / U.S.N. Sentinel Commander / Compère / 1st Site Control Policeman (voice)

John Tate

Frank Hooper / Sir Harry (voice)

Alan Fennell

Writer

Gerry Anderson

Original Concept

Sylvia Anderson

Original Concept

Robert Mandell

Production Coordinator

Reg Hill

Producer

Gerry Anderson

Executive Producer

David Elliott

Director

David Lane

Director

Desmond Saunders

Director

Barry Gray

Music

Derek Meddings

Visual Effects Director

David Hirsch

Creative Consultant

Brian Johnson

Special Effects