David Tennant

The Doctor (voice)

Freema Agyeman

Martha Jones (voice)

Anthony Stewart Head

Baltazar (voice)

Toby Longworth

Caw / Squawk (voice)

Liza Tarbuck

Captain Kaliko (voice)

Tom Farrelly

Swabb (voice)

Lizzie Hopley

Mantasphid Queen (voice)

Paul Clayton

Mergrass (voice)

Steven Meo

Pilot Kelvin (voice)

Barney Harwood

Control Voice (voice)

Stephen Greif

Gurney (voice)

Dan Morgan

Locke / Warders (voice)