The Fenn Street Gang 1971 "Please Sir!" film), David Barry, Peter Denyer and Liz Gebhardt. Leon Vitali replaced Malcolm McFee as Peter Craven during the first series, although Malcolm took this role back for the second and third series. Peter Denyer (Dennis Dunstable) and Liz Gebhardt (Maureen Bullock) were absent from the third (and final) series. John Alderton (Mr Hedges, their form-master when they starred in "Please Sir!") guest-appeared in 3 episodes of the first series of "The Fenn Street Gang" and the first two episodes from the final series of "Please Sir!", which ran alongside "The Fenn Street Gang" in transmission dates. Richard
Eureka (UK TV series) sketches to deliver key facts and information. Notable cast members included Sylvester McCoy, Simon Gipps-Kent, Bernard Holley, Madeline Smith, Mike Savage, Julia Binsted, Philip Fox and Jackie Clarke. Each show also featured a segment showcasing a madcap and not always reliable invention by Wilf Lunn often to the bemusement of McCoy or another of the regular cast. In the fourth and final series, the format changed slightly and Lunn became the presenter, playing the Doctor of Alternative Invention at the Eureka Museum of Invention. Eureka (UK TV series) Eureka (sometimes referred to as Eureka!) is a British educational television series