Acting · b. 1969 · Toronto, Ontario, Canada John Henry Canavan Biography John Henry Canavan is a Canadian film and television actor. Acting Flags of Our Fathers Jailer 2006 Blackout Chris 2001 The Crossing Gen. Henry Knox 2000 Jailbait! Johnny 2000 Forever Mine 2nd Plainclothesman 1999 Wilma's Sacrifice Pastor 1999 Dirty 1998 Agent-readable