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John O'Callaghan (I)

John O'Callaghan has performed in Canada, Ireland and the USA. He left home at 17 to study Computer Science at the University of Ulster in Belfast. He started to act at the same time with Belfast Youth and Community Theatre - with a mandate to bring protestant and catholic actors together. The New Theatre school followed in Boston, Massachusetts. ... See full bio »
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Known For


Jump to: Actor | Archive footage
Hide Hide Show Show Actor (12 credits)
 2009 Dangerous Women (TV Series)
- Come with Us (2009) ... Steve
 2006 Stargate: Atlantis (TV Series)
- The Return: Part 2 (2006) ... Niam
- The Real World (2006) ... Niam
- Progeny (2006) ... Niam
 2003 The Gavin Crawford Show (TV Series)
2003 - last season - irish character
- A Very Pretty Turnip (2003) ... 2003 - last season - irish character
 2002 The Agency (TV Series)
Declan Berwick
- Elite Meat to Eat (2002) ... Declan Berwick
 2002 We Were the Mulvaneys (TV Movie)
Abe Love
 2002 Haven't We Met Before? (TV Movie)
 1999 Deep in My Heart (TV Movie)
 1998 Of Urban Myths and Other Stories
Calvin The Suicidal
 1998 Clutch
 1998 Once a Thief (TV Series)
Andy Woodham
- Shaken Not Stirred (1998) ... Andy Woodham
 1996 Never Met Picasso
Hide Hide Show Show Archive footage (1 credit)
 2008 Stargate: Atlantis (TV Series)
- Inquisition (2008) ... Niam

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Personal Details

Other Works:

O'Callaghan was directed by Mark Romanek for the New Honda Ad Campaign. See more »

Official Sites:


6' 2" (1.88 m)

Did You Know?


He has a son named Odin who he adopted from Africa. See more »



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