Jimmy Hanley

as Nicholas 'Garble' Diabolus, Budgenot, Works Foreman / Machinist

Robin Bailey

as The Judge

John Glen

as Prosecuting Counsel

Frank Tickle

as Defending Counsel

Ewan Roberts

as Victor Skyway

Harry Herbert

as Ephraim Oldman

Erik Chitty

as Sterling Silver

Leslie Weston

as Works Manager