John Moreno
His television credits include "Doctor Who" ( in the serial "The Ambassadors of Death" where he played Dobson ) , "Moonbase 3" , "The Duchess of Duke Street" , "Return of the Saint" , "Thriller" , "The Sweeney" , "The Enigma Files" , "Kessler" , "Farrington of the F . O . " , "Squadron" , "Only Fools and Horses" , "Dempsey and Makepeace" , "Beau Geste" , "One by One" , "Lovejoy" and "Heartbeat" . 
<triplet> The Ambassadors of Death <subj> Doctor Who <obj> part of the series