Générique complet
Mystery Junction
Sydney Tafler
Larry Gordon
Barbara Murray
Pat Dawn
Patricia Owens
Mabel Dawn (as Pat Owens)
Martin Benson
Steve Harding
Christine Silver
Miss Owens
David Davies
Benson
CI
Charles Irwin
Hooker
PD
Philip Dale
Elliot Foster
PC
Pearl Cameron
Helen Mason
John Salew
John Martin
Ewen Solon
Detective Sgt. Peterson
DW
Denis Webb
Detective Inspector Clarke
Cyril Smith
Station Master
SM
Sidney Monckton
Ticket Collector
SR
Stanley Rose
Guard