McNulty was born in Penticton, British Columbia, Canada. He has acted on three aviation movies: Falling from the Sky: Flight 174 with William Devane,Final Descent with Robert Urich and Snakes on a Plane with Samuel L. Jackson. He had a supporting role to Roger Moore and Nancy Allen in Bill Condon'sThe Man Who Wouldn't Die (1995). McNulty also appeared in the 2009 remake of The Uninvited where he worked alongside A Series of Unfortunate Events' Emily Browning. He also played The Reverend Roy Le Grange in the "Supernatural" TV episode "Faith"
Timecop
The Man Who Wouldn't Die
Bird on a Wire
The Invisible
Nightwatching
The Accused
Fantastic Four
Watchmen
Snakes on a Plane
Fantastic Four: Rise of the Silver Surfer
John Tucker Must Die
Shoot to Kill
The Uninvited
Code Name: The Cleaner
Bingo
Spectacular!
Reefer Madness: The Movie Musical
Navigating the Heart
Bob the Butler
The Seamstress
