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Person

James Callis

James Nicholas Callis (born 4 June 1971) is an English actor. He is known for playing Dr. Gaius Baltar in the re-imagined Battlestar Galactica miniseries and television series, Bridget Jones' best friend Tom in the Bridget Jones film series and Claude Whelan in the Apple TV spy series Slow Horses.

Also recorded as James Nicholas Callis

James Callis

James Callis at Comic Con Revolution 2026 in Ontario, California

Kevin Paul · CC BY 4.0

Birth Name
James Nicholas Callis
Born
4 June 1971
Birthplace
Hampstead, London, England
Education
Harrow School
Occupation
Actor
Nationality
United Kingdom
Honours
Saturn Awards
Languages
English

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wikidata · Q374770 · wikipedia · James Callis

In this article

  1. 01Biography
  2. 02Visual art and other activities
  3. 03Notes, references and evidence

The Encyclopedia exists whether or not anything is for sale. Corrections are recorded rather than overwritten, and every version of this record is kept. Published 14 August 2026.

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