John C. McGinley

Chicago P.D.

as Brian Kelton

2014

King of the Hill

as One-Armed Ronnie / Ranger (voice)

1997

Frasier

as Danny Kriezel

1993

Scrubs

as Perry Cox

2001

Brooklyn Nine-Nine

as Frank O'Sullivan

2013

The Practice

as Leonard Goode

1997

Burn Notice

as Tom Card

2007

Kim Possible

as Rudolph Farnsworth / White Stripe (voice)

2002

Scrubs

as Dr. Perry Cox

2026

The Boondocks

2005

Justice League Unlimited

as The Atom / Ray Palmer (voice), as The Atom (voice)

2004

Genius

as Lyndon B. Johnson

2017

American Dragon: Jake Long

as Dr. Diente (voice)

2005

Justice League

as Executive / Bookie (voice)

2001

Spider-Man: The New Animated Series

as Richard Damien (voice)

2003

Rooster

as Walter Mann

2026

Clone High

as Creepy Trucker (voice)

2002

Ground Floor

as Remington Stewart Mansfield

2013

Stan Against Evil

as Stanley Miller

2016

MADtv

as Self - Special Guest / Paul a Postal Worker

1995