Hogan was born and raised in Toronto and is the second of three children. His parents are also actors; father Michael Hogan can currently be seen as Colonel Tigh in the hit show Battlestar Galactica, while mother Susan Hogan is currently a recurring cast member on the hit cable show The L Word. His sister, Jennie Rebecca Hogan, is also an actress.
Hogan's highest profile roles to date have been in Canadian television. He was featured as Ian Farnham during the five-year run of the show Traders, and also appeared in The Associates.
His other Canadian television credits include the series Playmakers, Angela's Eyes, Rent-A-Goalie, This Is Wonderland, and Robson Arms. Hogan is a hockey fan and proficient player, and several of his credits are hockey related; in 2006, he was part of a reality TV show about hockey in Canada.
His notable American television credits include a stint on the acclaimed show Wonderfalls, playing a lovesick delivery man in several episodes of the short-lived show.
Hogan's film credits include Crazy Canucks, Peacekeepers, Canada Russia '72, The One, Head In The Clouds, and Show Me.
Hogan is also part of a rock band, "Battlestar".
Gabe is a Valet and answers to the name "poochie".