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James Callis

Acting · Born June 4, 1971 · 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.

Movies with James Callis

• Bridget Jones: Mad About the Boy (2025) — Tom
• Bridget Jones's Diary (2001) — Tom
• Bridget Jones's Baby (2016) — Tom
• Bridget Jones: The Edge of Reason (2004) — Tom
• One Night with the King (2006) — Haman, the Agagite
• Battlestar Galactica: Razor (2007) — Dr. Gaius Baltar
• Austenland (2013) — Colonel Andrews
• Narcopolis (2015) — Todd Ambro
• Merlin and the Book of Beasts (2009) — Merlin
• Once Upon a Date (2017) — Ed Holland
• House by the Lake (2017) — Scott
• The Hollow (2016) — Vaughn Killinger

TV shows with James Callis

• Slow Horses (2022) — Claude Whelan
• Battlestar Galactica (2004) — Gaius Baltar
• Eureka (2006) — Dr. Trevor Grant
• 12 Monkeys (2015) — Athan Cole
• FlashForward (2009) — Gabriel McDow
• Castlevania (2017) — Adrian Tepes / Alucard (voice)
• Castlevania: Nocturne (2023) — Alucard (voice)
• Blood & Treasure (2019) — Simon Hardwick