Fair Fight - S6-E5
Other mistake: When Squad 51 is dispatched to 'man with head injury' which is the fighting couple, the dispatcher says "10763 Riverton, cross street Valleyheart Drive," but when they arrive the two street signs at the intersection read "Valleyheart Drive 10700" and "Riverton Ave 4000." The house number is 10763, so the dispatcher should have said, "10763 Valleyheart Drive, cross street Riverton."
Fair Fight - S6-E5
Other mistake: Squad 51 is dispatched to the fighting couple three different times, and we hear the dispatcher give the address cross street as "Valleyheart," but all three times the subtitles read, "Valley Park." Subtitles from Universal Studios 2010 DVD.
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.