The Wedsworth-Townsend Act - S1-E1
Revealing mistake: When Squad 10 is dispatched to "possible electrocution," just as the apparatus bay door opens and the squad rolls out, we can see a police officer holding back traffic for the filming of this shot.





Answer: I believe you are speaking of the old man, Mr. Wilson. He's played by J. Pat O'Malley.
Bishop73
Correct, it was J. Pat O'Malley...he also played the grandfather with his grandson when their rocket exploded, and also played "Old Bill" in the episode with Ann Prentiss, where Gage saves the little girl from the burning tree house, and her mother falls in love with him.