Colin Baker

The Doctor

Nicola Bryant

Peri Brown

Michael Jayston

The Valeyard

Lynda Bellingham

The Inquisitor

Brian Blessed

King Yrcanos

Nabil Shaban

Sil

Christopher Ryan

Kiv

Patrick Ryecart

Crozier

Alibe Parsons

Matrona Kani

Trevor Laird

Frax

Thomas Branch

The Lukoser

Gordon Warnecke

Tuza

Richard Henry

Mentor

Philip Martin

Writer

Ron Jones

Director

Eric Saward

Script Editor

John Nathan-Turner

Producer

John Hearne

Costume Design

Andrew Howe-Davies

Production Design

Richard Hartley

Original Music Composer

Colin Widgery

Lighting Director

Mike Johnstone

Sound

Dorka Nieradzik

Makeup Artist

Karen Jones

Production Assistant

Kevan Van Thompson

Production Manager

Dick Mills

Special Sound Effects

Alec Wheal

Camera Supervisor

Don Babbage

Lighting Director

Brian Clark

Sound

Danny Popkin

Visual Effects

Hugh Parson

Editor

Peter Wragg

Visual Effects

Dominic Glynn

Theme Song Performance