John Marquez was born 5 June, 1970 in Rugby, Warwickshire. He is a British actor who is best known for playing P.C. Joe Penhale in Doc Martin, he has also been in The Bill, Black Books, Holby City, Hotel Babylon, Suburban Shootout, The Trial of Tony Blair, Ronni Ancona & Co., EastEnders, London Suite, Soldier Soldier, Jonathan Creek, Coming Up and In the Club.
He is the middle-aged brother of Martin Marquez in his family tree.