Gertan Klauber
He played small roles in many of the "Carry On" films and appeared in numerous television productions , often playing minor villains , including episodes of "The Saint" , "The Professionals" , "Danger Man" , "The Avengers" , twice in "Doctor Who" as The Galley Master in The Romans and as Ola in The Macra Terror and as mad king George III in "Blackadder the Third" . 
<triplet> The Romans <subj> Doctor Who <obj> part of the series <triplet> The Macra Terror <subj> Doctor Who <obj> part of the series