 According to a recent book Stanley Baker (qv) intended the role of  Private Hitch to be played by "the actor from  _"That Was the Week That Was" (1964)_ (qv) whose surname begins with  a K". He was alluding to Roy Kinnear (qv) without realizing that  the series also starred David Kernan (I) (qv). When Kernan turned  up on the set Baker realized his mistake but hired him anyway.