A childhood memory shattered

Lizzie's been watching episodes of St Elsewhere recorded on our Shiny Box of Joy(tm), an early 80's hospital drama which seems fairly tame by modern standards, but was allegedly quite cutting edge in its time.

The problem is with one of the actors in one of the current story arcs. The actor in question plays the part of Dr. Mark Craig and if you look at the imdb page linked above, he's played by William Daniels, who also played the voice of KITT from Knight Rider.

( The Problem. )