Welcome to Santa Rosa County - S6-E10
Other mistake: When Roy and Johnny begin their ascent, the injured rock climbers are shown in a closeup, which then zooms out so we can see the entire area to the left, and the only rope up there is the boys' red rope. When Johnny reaches the boys, he's pulling himself up with the help of a blue rope, which has already been anchored in place near the injured boys. So who put it up there and anchored it? Not the injured boys. Not Johnny. Not Roy, who is still down below.
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.