Dr. Victor Gannon is one of the main antagonists in Return from Witch Mountain. He's a scientist working for Letha Wedge. They found Tony when they saw Tony using his powers to save Sickle from falling to his death. So they decided to kidnap him and use him for their schemes.

Several years later, Christopher Lee played a very similar character, Dr. Cushing Catheter, in the Warner Bros movie Gremlins 2: The New Batch.