Jo Louis Walker / 'Kommissar X'
Capt. Tom Rowland
Emily Lambert
Betty Rogers
Anthony
Elizabeth Hillary
Robert Hillary / Arthur Hillary
Inspektor Lefèvre
Smoky (as Frank Kramer)
Inspektor Barry (as Laci v. Ronay)
William Rogers
Second Killer with Harpoon (uncredited)
Capt. Tom Rowland (voice) (uncredited)
Guard at Museum (voice) (uncredited)
Inspector Barry (voice) (uncredited)
Doctor (uncredited)
Robert Hillary (voice) (uncredited)
Jo Louis Walker / 'Kommissar X' (voice) (uncredited)
Doctor (voice) (uncredited)
Elizabeth Hillary (voice) (uncredited)
TV Announcer (voice) (uncredited)
William Rogers (voice) (uncredited)
Killer (uncredited)
Arthur Hillary (voice) (uncredited)
Inspector Jackson (voice) (uncredited)
Inspektor Jackson (uncredited)
Smoky (voice) (uncredited)
