Gregg O'Hara

Professor Gregory "Gregg" O'Hara is the deuteragonist of the 1998 Disney film Mighty Joe Young. He is portrayed by Bill Paxton.

He is a refuge director who convinces Jill Young that her giant gorilla Joe will be much safer from poachers if they move to Los Angeles. Jill agtres and Gregg starts to fall for Jill. But strasser is back for revenge on Joe and Jill and gregg must do whatever they can to save him.