출연진
Caroline John
Dr. Elizabeth Shaw
Jon Pertwee
Dr. Jeremiah O'Kane
Sylvester McCoy
Dr. Colin Dove
Colin Baker
Peter Russell
마크 게이티스
Dr. William Bruffin
Louise Jameson
Patricia Haggard
Sophie Aldred
Public Relations Officer
Linda Lusardi
Louise Bayliss
David Terence
Daniel O'Kane / Eustace O'Kane
Nicola Fulljames
Dr. Beatrice Hearst
Patricia Merrick
Dr. Julie Gilchrist
Jonathan Rigby
Cummings
Alexander Kirk
Orderly
Daniel Mills
Ghostly Child Voice
Peter Davison
Patient One