Born and raised in Edmonds, Washington. Brett attended Edmonds-Woodway High School. During his summers, he would travel to Stagedoor Manor Theatrical Training Center in upstate New York. After graduating from AMDA in New York he lived and auditioned in the city until landing a lead role in his first film. After completing work on "Beautiful Ohio" he moved to LA where he has been ever since.
Since arriving to Los Angeles, Davern has quietly amassed a body of work that encompasses both television and film. Most recently, he wrapped the independent feature Junk, set to hit the festival circuit in the near future. Brett also starred opposite Mathew Lillard and Rachelle Lefevre in the coming-of-age comedy Pool Boys, and played the introverted "Whisper" in the feature film Triple Dog opposite Brittany Robertson and Scout Taylor Compton. His television credits include popular television dramas such as CSI: Miami, In Plain Sight, Medium, and Cold Case, in which he played Kathryn Morris's younger, troubled brother in the recurring role of "Finn."
2006: Beautiful Ohio- William Movie (Movie Debut)
2008: Player 5150- Mike (Movie)
2008: CSI: Miami- Justin Marsh TV Series (Guest Role)
2009: In Plain Sight- Eric TV Series (Guest Role)
2010: The Pool Boys- (Alex Sperling Movie)
2009-2010: Cold Case- Finn Cooper TV Series (Recurring Role)
2010: The Deep End- Charlie Holloway TV Series (Guest Role)
2010: Case 219- Leonard Gray (Movie)
2010: Medium- Ryan Graff TV Series (Guest Role)
2010: Triple Dog- Whisper (Movie)
2011-present: Awkward- Jake Rosati (TV Series- Series Regular)
2011: Junk- (Billy Movie)
2012: The Finder- Cooper Allison (Tv Series)