Tom Baker

The Doctor

Elisabeth Sladen

Sarah Jane Smith

Stephen Thorne

Kastrian Eldrad

Judith Paris

Eldrad (female form)

Roy Pattison

Zazzka

Roy Skelton

King Rokon

Rex Robinson

Dr. Carter

Glyn Houston

Professor Watson

Frances Pidgeon

Miss Jackson

John Cannon

Elgin

David Purcell

Abbott

Renu Setna

Intern

Robin Hargrave

Guard

Roy Boyd

Driscoll

Lennie Mayne