In 1993 he had a recurring role as Mickey Drake in the series Oasis. Gaffney has also appeared in episodes of the TV series Inside Victor Lewis-Smith, Lenny Goes to Town, The Bill, Extras, TV Burp, and Crime Stories. In 2006 he was a contestant on the reality TV series I’m a Celebrity, Get Me Out of Here!. Gaffney has also appeared in stage productions of Waiting for Godot, Calendar Girls, and Peter Pan.