Colin Baker

The Doctor

Nicola Bryant

Peri Brown

Maurice Denham

Edgeworth

Edwin Richfield

Mestor

Kevin McNally

Hugo Lang

Dennis Chinnery

Sylvest

Gavin Conrad

Romulus

Andrew Conrad

Remus

Seymour Green

Chamberlain

Oliver Smith

Drak

Barry Stanton

Noma

Dione Inman

Elena

Helen Blatch

Fabian

Roger Nott

Prisoner

John Wilson

Jacondan Guard

Graham Cole

Jacondan

Peter Moffatt

Director

Anthony Steven

Writer

John Nathan-Turner

Producer

Malcolm Clarke

Original Music Composer

Peter Howell

Theme Song Performance

Eric Saward

Script Editor

Valerie Warrender

Production Design

Pat Godfrey

Costume Design

Ian McKendrick

Editor

Hugh Parson

Editor

Scott Talbott

Sound

Malcolm Campbell

Sound

Dick Mills

Special Sound Effects

Don Babbage

Lighting Director

Sid Sutton

Main Title Designer