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)