Along with Simon Pegg, Alan Dale, Daphne Ashbrook, Guy Siner, Maurice Roëves, Olaf Pooley, John Franklyn-Robbins, Christopher Neame and Deep Roy, he is one of only ten actors to have speaking roles in both the "Star Trek" and "Doctor Who" franchises. He played Paris in "Doctor Who: Small Prophet, Quick Return (#3.7)" (1965), "Doctor Who: Death of a Spy (#3.8)" (1965) and "Doctor Who: Horse of Destruction (#3.9)" (1965) and Danilo O'Dell in "Star Trek: The Next Generation: Up the Long L
On the shortlist for "Terrall" (played by Gary Watson) for "Doctor Who" (1963): Evil Of The Daleks.