Guest Stars Roger Leach as Tom Penny Mike Burnside as D.A.C. Hicks Paul Kidd as Ambulanceman Terence Budd as Craddock Tilly Blackwood as Front Desk Clerk Peter Harding as Ch. Supt. Firth Peter Lloyd as Boy Witness Patrick Jordan as Asst. Commissioner Catherine Clarke as Mrs. Gibbons Graham Colclough as Motorcyclist John Dryden as D.A.C. Drew Nigel Bellairs as Usher
