Born on September 4, 1995 in Thousand Oaks, California, actor Trevor Gagnon showed an interest in acting at a very young age. When he was six years old, he began the search for a talent agent to see if he had what it took to break into the show business. A local talent agency realized the talent that the boy had, and didn’t hesitate to sign him on.
Trevor Gagnon’s first role was on an HBO television production titled Iron Jawed Angels. The story dealt with the struggles and triumph of women during the Women's Suffrage Movement in the 1990s. Gagnon gained more experience in acting, learning from many of his co-stars. In 2002, fresh out of filming, he landed an audition to be the child representative for Welch’s grape juice. There was immense competition for the role, and he ended up in the top four out of 2500 kids. Though he didn’t get the part, he gained much knowledge about the industry through it. Later on, he found himself facing an even bigger opportunity, as he was cast on the feature film Big Fish, playing the son of Billy Crudup. The Tim Burton-directed film was critically acclaimed, and this enabled Gagnon to appear in several other projects. After work in dozens of commercials, he was cast on smaller films like Loggerheads and Southern Belles. To jumpstart his career, his managers told him that he should try auditioning during pilot season. Along with his mother, he moved to Hollywood and worked on many projects. He became the lead voice in the animated 3-D feature film Fly Me to the Moon, released in spring of 2007. Later on, he joined the cast of the series The New Adventures of Old Christine. The Comedy series allowed him to play Ritchie, the son of series star Julia Louis-Dreyfus. He has also been doing voice work on Playhouse Disney’s animated series, Happy Monster Band. Other than acting, Trevor Gagnon has expressed a fondness for reading, playing baseball and camping with his family.