Biography
J.D. Walsh was born in 1974 as John Walsh. He is an actor and producer.
Filmography
Cast Credits

Georgie & Mandy's First Marriage
Character: Travis Lemon
TV • 2024

Tulsa King
Character: Harlan Thibodeaux
TV • 2022

Hacks
Character: Steve
TV • 2021

All Rise
Character: Moe Wardlow
TV • 2019

The Rookie
Character: Mr. Dugan
TV • 2018

9-1-1
Character: Officer Gerrard
TV • 2018

Young Sheldon
Character: Travis Lemon
TV • 2017

The Amazing Spider-Man 2
Character: Dr. Jallings, Science Investigator
MOVIE • 2014

The Crazy Ones
Character: Randall
TV • 2013

Life of a King
Character: Fritz
MOVIE • 2013

Franklin & Bash
Character: Alan Slaten
TV • 2011

Rizzoli & Isles
Character: Larry Rothsburgher
TV • 2010

The League
Character: JD
TV • 2009

Castle
Character: John Emerson
TV • 2009

The Mentalist
Character: Nate Glass
TV • 2008

iCarly
Character: Gordon Birch
TV • 2007

...So Goes the Nation
Character: Self
MOVIE • 2006

Bickford Shmeckler's Cool Ideas
Character: Fred
MOVIE • 2006

Bones
Character: Dr. Fred Dumaski
TV • 2005

It's Always Sunny in Philadelphia
Character: Doctor
TV • 2005