On screen · 5

1. TC
   Tim CurryPsychas Nigel St. NigelClueas Wadsworth
2. CL
   Christopher LloydPsychas Martin KahnClueas Professor Plum
3. LA
   Lesley Ann WarrenPsychas LeslieClueas Miss Scarlet
4. MM
   Martin MullPsychas Highway HarryClueas Colonel Mustard
5. HH
   Howard HessemanPsychas Barry SaunderClueas The Chief (uncredited)