2023		Off Script with The Hollywood Reporter (1 episode) as Self
2023		Fellow Travelers (8 episodes) as Hawkins 'Hawk' Fuller

2022

(7 episodes) as Jack Beck

2021

(2 episodes) as Michael

2020

(1 episode) as Self

2019		The Kelly Clarkson Show (2 episodes) as Self
2019		RuPaul (1 episode) as Himself
2019		Doom Patrol (46 episodes) as Larry Trainor / Negative Man (voice)

2018

(2 episodes) as Larry Trainor / Negative Man (voice)

2017		Will & Grace (6 episodes) as McCoy Whitman
2017		The Sinner (1 episode) as Jamie Burns (archive footage) (8 episodes) as Jamie Burns
2017		The Last Tycoon (9 episodes) as Monroe Stahr

2014		Late Night with Seth Meyers (1 episode) as Self
2014		The Tonight Show Starring Jimmy Fallon (2 episodes)

2012

(1 episode) as Monty

2011

(1 episode) as Andy (12 episodes) as Donovan

2009		White Collar (81 episodes) as Neal Caffrey
2009		Watch What Happens Live with Andy Cohen (2 episodes) as Self - Guest
2009		Glee (1 episode) as Cooper Anderson

2007		Chuck (9 episodes) as Bryce Larkin
2007		Traveler (8 episodes) as Jay Burchell

2003		Tru Calling (14 episodes) as Luc Johnston
2003		Jimmy Kimmel Live! (1 episode)

1999

(1 episode) as Driver agent

1970

(2336 episodes) as Ian Kipling

—

(0 episodes) … Producer

2023

(8 episodes) … Executive Producer

2009

(19 episodes) … Producer

—

… Creator

2016

(1 episode) … Director