Captain Hook - S6-E8
Other mistake: When John, Roy, and Chet are standing near the stove talking about how much they enjoyed Hookrader's party, there's a can of cleaning powder which has tape swirled around the can to hide the recognizable design and its brand name, which is Ajax.
Captain Hook - S6-E8
Other mistake: While Roy, John, and Chet are talking about the party, and how emotional it all was, we hear Hookrader say, "Lopez," just as he walks into the kitchen where Marco Lopez is sitting, but the subtitles read, "Hello, guys."
Captain Hook - S6-E8
Other mistake: When Johnny and Roy rappel down the cliff to the downed police traffic helicopter, Johnny gets on the HT and says, "All right, Cap, this is HT 51..." but the subtitles actually read, "Hi, Cap, this is HE 51..." After the rescue, Captain Stanley tells Roy and Johnny to get checked out at the hospital, and he'll have Chet drive the Squad in, so Johnny replies, "Okay," but subtitles read that Chet replied, even though Chet is still down below with Marco. Subtitles from Universal Studios 2010 DVD.
Captain Hook - S6-E8
Other mistake: When Roy and Johnny rescue the deputy from the wrecked chopper that sank in the water, they emerge from the water soaked from head to toe, but when they are pulled to the top of the cliff, Johnny and Roy are both completely dry except for a few small wet patches on their shirts.





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.