He played Ellison "Cotton Top" Mounts in the Emmy Award-winning miniseries Hatfields & McCoys as well as bully Troy McGinty in Max Keeble's Big Move (2001), Vladimir, a 1,500-year-old vampire in The Twilight Saga: Breaking Dawn – Part 2 (2012), and Michelangelo in Teenage Mutant Ninja Turtles (2014) and its sequel Teenage Mutant Ninja Turtles: Out of the Shadows (2016).

[5] During his time as a young actor in Vancouver, he was encouraged to "take many different classes" and "fell in love" with piano, which he studied for eight years.

From 2007, Fisher became more known by the public due to the FX series The Riches, portraying Cael, the conniving and clever son of parents played by Eddie Izzard and Minnie Driver.

[7] In 2014 Vanity Fair named his relationship with Cameron Monaghan's Ian Gallagher the best-written gay couple on television.

[10] Fisher told creator Mikko Allanne he would not accept the part unless he could meet with Young's family; "That's how committed he was to doing it right".

[11] Fisher played Ellison "Cotton Top" Mounts in the award-winning miniseries Hatfields & McCoys as well as Vladimir, a 1.500-year old vampire in The Twilight Saga: Breaking Dawn – Part 2 and Michelangelo in Teenage Mutant Ninja Turtles and its sequel Teenage Mutant Ninja Turtles: Out of the Shadows.