Harold Gribble is a character in Round The Twist.
Harold is well-off, has a wife and son that he takes for granted and assumes that everyone is on his side. He would have liked to buy the Lighthouse from Nell, but he didn't have any funds at the time it was up for sale. Harold is a greedy real-estate agent who often tries to force the Twists to move out of the lighthouse with business schemes, for property development. Harold acts friendly, but is extremely pushy and is prone to throwing tantrums when he's beat.
In Wunderpants, while Harold shows a couple of developers around Port Niranda including the beach and Heritage Trust St. Johns Church. They keep running into Pete Twist exhibiting extraordinary behaviour so they take photos making sure that they all appear in a few.