Bruce Seton

as Prof. Flaherty (archive footage)

as Beadle

as Col. James Somerset

as Nimmo

as Assistant Commissioner

as Prosecutor

as Prof. Flaherty

as Felix

as Charlie

as Patrolman (uncredited)

as Colonel Digby-Phillpotts

as (uncredited)

as River Police Inspector

as 1st Villager

as Policeman on Train (uncredited)

as Inspector Davis

as Supt. James

as Landlord

as Bill Dodd

as Inspector Shearing

as Colonel Bullinger (4 episodes)

as Kemp (1 episode)

as King Richard The Lionheart (1 episode), as Earl of Ashington (1 episode)

as Ted Austin