Trivia: Keep your eyes peeled for the big sheepdog who runs right into the patio door in the background, when Roy and Johnny are with the sitter who's hyperventilating, due to three very obnoxious boys she's been babysitting, and then the look on Johnny's face as he tries not to break character when he turns to Roy and says "Dumb dog." Also, a few moments later you'll see Roy and his imaginary watch. Absolutely priceless.
Trivia: During dinner Johnny's voice is hoarse again, and after watching the news that incorrectly stated that Brice rescued the other firemen, when it really was the other way around, Roy makes a crack about Johnny never sounding better which irks Johnny, and as the scene closes he looks up at the camera with quite a perturbed look directed at the TV audience, which "breaks the fourth wall."
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.