The Doctor - Colin Baker

Hoyer - Alistair Lock

Fantham - Andrew Hair

Krueger - William Johnston

Professor Osborn - Nicholas Briggs

Administrator David Isherwood - Christopher Scott

Evelyn Smythe - Maggie Stables

Doctor Reece Goddard - Yee Jee Tso

Nicola Savage - Jane Goddard

Taylor Renchard - Richard Herring

Ryan Carey - Stewart Lee

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Written and Directed by Gary Russell

Edited by William Johnston

Post-production and music by Alistair Lock.

Cybermen © the estate of Kit Pedler and Gerry Davis and used by kind permission.

Illustrations by Lee Sullivan

Producer for Big Finish - Jason Haigh-Ellery

Executive Producer for BBC Worldwide - Jacqueline Rayner