OK, you got it. I typed the question too quickly, I meant to ask who were the performers that appeared in both shows, which (from your list) is correct. (Alan Alda and Loretta Swit) It's kind of a trick question - the character of Father Mulcahy was (briefly) in the first episode, but was played by someone else.
OK, now for a tougher one. What was Father Mulcahy's sister's first name?
Kevin