James Nicholas Callis (born June 4th, 1971) is an English 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.
Callis was born in Hammersmith and brought up in London, where he attended St. Martin's Prep School in Northwood and then Harrow School in north-west London. His parents owned a bed-and-breakfast.
Callis attended the University of York, graduating in 1993 with a BA in English and Related Literature. He was a member of Derwent College, for which he was an enthusiastic rugby player. At university he was also a keen student actor, director and writer. He was a key member of the University of York Gilbert and Sullivan society and even appeared in productions put on by friends at Cambridge University, including a production of Harold Pinter's The Birthday Party.
Callis went on to attend the London Academy of Music and Dramatic Art, from which he graduated in 1996. In the same year, he was awarded the Jack Tinker Award (Theatre Record Critic of the Year) for Most Promising Newcomer for his performance in Old Wicked Songs, a two-hander by Jon Marans, in which he starred alongside Bob Hoskins.
Callis has appeared in various West End productions and television series as well as on radio. He has also been involved in writing and directing. His directorial debut was Beginner's Luck, a co-production of his and writer/director Nick Cohen's Late Night Pictures and Angel Eye Film & TV. Beginner's Luck was critically panned but ran for almost three weeks on one print in one cinema in central London, then went on a tour of student cinemas around the U.K. The U.K. distributor was Guerrilla Films. The film is still on the Icon Catalogue.
Callis finished filming his first role in a cinema film, Bridget Jones's Diary, alongside Renée Zellweger and Hugh Grant, in the summer of 2000 and between a few further film and TV roles went back on stage in the Soho Theatre in December 2002.
In 2003, Callis played the role of Dr. Gaius Baltar in the re-imagined Battlestar Galactica miniseries, and continued the role in the regular series that followed. In 2006, Callis won the Best Supporting Actor Saturn Award and an AFI award for his performance as Baltar.
Callis has been married to Neha Callis since December 30, 1998. They have two sons and a daughter, Joshua Amaan (born 2003), Sacha (born 2005), and Anika Jahan (born 2009).