Was Lou Ferrigno really 6'5"? I know that's his official listed height, but he didn't look that tall compared to others in the TV series, and looked even shorter when he played a double role in the episode "King of the Beach" when he stood next to Bill Bixby and was not in Hulk makeup. There wasn't a huge height difference.
Also, in "Chuck" he might even have been shorter than Zachary Levi.
If everyone in Hollywood lists their height as 1 or 2 inches taller than they are, then maybe he was only 6'4" or 6'3"?