John Ireland

as John Hunter

43 episodes

Robert Ayres

as Walter Allen

43 episodes

Ann Hanslip

as Walter Allen's Secretary

(+1 more)

5 episodes

Ballard Berkeley

as Mansion

(+2 more)

3 episodes

Reginald Marsh

as Inspector Martin

2 episodes

Michael Balfour

as Freddy

(+1 more)

2 episodes

Robert Cawdron

as Saxon

1 episodes