Patrick Gallagher is a Canadian actor. He is most famous for his Attila the Hun role in Night at the Museum. He received a BAFTA Award for Performer in a Supporting Role nomination for his work in Ghost of Tsushima.

Night at the Museum is a 2006 American fantasy comedy film directed by Shawn Levy and written by Robert Ben Garant and Thomas Lennon. It is based on the 1993 children's book of the same name by Croatian illustrator Milan Trenc. The film had an ensemble cast of Ben Stiller in the lead role, Carla Gugino, Dick Van Dyke, Mickey Rooney, Bill Cobbs, and Robin Williams. It tells the story of a divorced father who applies for a job as a night watchman at New York City's American Museum of Natural History and subsequently discovers that the exhibits, animated by a magical Egyptian artifact, the tablet of Akhmenrah, come to life at night. 20th Century Fox released the film on December 22, 2006, and it grossed $574.5 million worldwide, becoming the 5th highest-grossing film of 2006, but received mixed reviews from critics.