Peter O'Brian, born Peter John Wilson, is a New Zealand-Indonesian actor best known for playing Alex Tarambuan in the movie The Intruder. He is not to be confused with the Australian actor Peter O'Brien. O'Brian has only featured in strictly Indonesian productions. Nearly all of his movies have involved Arizal or the Indonesian producers The Punjabi Brothers; he has also worked closely with Jopi Burnama. The Stabilizer was O'Brian's first movie.