A few months ago Pete Birks mentioned on his site that the US actor Richard Belzer had played the same character on six different TV shows. Can that be topped for typecasting? Perhaps so. Check out Britain's own Michael Sheard:
and try and count the number of times he played Adolf Hitler. I counted five. But if you chuck in Himmler (three times) 'Goering's Double' (on Allo' Allo') and various Kamp Kommendants, U-boat captains, Oberstleutnants and other assorted WW2 Germans, I reckon you can safely say he was even more typecast than Belzer. He was even a German in Auf Wiedersehen Pet.
But he's better known to most of you as Mr Bronson on Grange Hill!