
London, England, UK
James Callis (born 4 June 1971) is a British actor. He is best known for playing Dr. Gaius Baltar in the re-imagined Battlestar Galactica miniseries and television series, and Bridget Jones' best friend in Bridget Jones's Diary and Bridget Jones: The Edge of Reason. He joined the cast of the TV Series Eureka, on Syfy, in 2010.

as John Merchiston

as Pat Gueterman / Courier Flaps (voice)
2013

as Toby DeQuetteville
1997

as John Merchiston
2000

as The Dodger
2012

as The Merchant / Clive
2016

as Gaius Baltar
2004

as Mason Duryea
2005

as Julius Borden
2008

as Claude Whelan
2022

as Dr. Trevor Grant
2006

as Maurice Picard
2020

as Athan Cole
2015
as Zalman
2020

as Tom
2025

as Ryan Brooks
2022

as Zalman
2020

as Scott
2017

as Ed Holland
2017

as Vaughn Killinger
2016

as Tom
2016

2016

as Todd Ambro
2015

as Colonel Andrews
2013

as John Bosson
2011

as Danny Rubin
2011

as Self - Narrator (voice)
2009

as Merlin
2009

as Dr. Gaius Baltar
2007

as Haman, the Agagite
2006

as Josh
2005

as Tom
2004
as King Menelaus of Sparta
2003

as Ernest
2001

as Tom
2001
1999
as John Merchiston
3 ep.

as Pat Gueterman / Courier Flaps (voice)
1 episodes

as Toby DeQuetteville
1 episodes

as John Merchiston
3 episodes

as The Dodger
1 episodes

as The Merchant / Clive
1 episodes

as Gaius Baltar
73 episodes

as Mason Duryea
1 episodes

as Julius Borden
1 episodes

as Claude Whelan
12 episodes

as Dr. Trevor Grant
10 episodes

as Maurice Picard
1 episodes

as Athan Cole
5 episodes

as Raoul
1 episodes

as Shakespeare
1 episodes

as James Callis
1 episodes

as Adrian Tepes / Alucard (voice)
32 episodes

as Guy Curran
3 episodes

as Gabriel McDow
5 episodes

as Émile Bonnaire
1 episodes

as Simon Hardwick
25 episodes

as Alucard (voice)
9 episodes

as Gaius Baltar
2 episodes

as Mark
1 episodes

as Sebastian
1 episodes
Director