Was a fan of the heavy-metal band Iron Maiden as a kid.
Began his acting career in Sydney theater, appearing in plays by Anton Chekhov and Leo Tolstoy.
His father is a physics teacher and his mother is a nurse (who also plays the piano).
His last name is pronounced "O-lock-lin".
Befriended co-star David Blue during the filming of Moonlight (2007). The two have remained good friends.