Was Derek Fowlds in The Young Ones with Cliff Richard?

No, Derek Fowlds was not in "The Young Ones" with Cliff Richard. "The Young Ones" was a British sitcom that aired in the 1980s and featured a cast including Rik Mayall, Adrian Edmondson, and Nigel Planer. Cliff Richard made a guest appearance in one episode, but Derek Fowlds, known for his role in "Yes Minister," was not part of the show’s main cast.