Celebrity Big Brother (participant)
Celebrity Masterchef (participant)
Give Your Mate a Break (pilot)
Jo Brand's Hot Potatoes (team captain)
New Faces (contestant)
Mr. Leslie D. Heseltine first found fame on New Faces and went on to feature as a supporting player in Russ Abbot's comedy shows, before forming a successful partnership with fellow comic Dustin Gee. After Gee's death in 1986, Dennis become more of an all-round light entertainer, and nowadays is better known for having been the longest-serving host of Family Fortunes, and breaking down in the Big Brother house. In 2006 he made a return to the gameshow scene as host of Five's In the Grid.
He was supposedly offered the chance to host Deal or No Deal, but turned it down.
He appeared in an edition of the BBC's police-drama series 'Mersey Beat' (around 2002), playing a troubled stepfather.