
David Nkrumah Liebe Unger Hart, also credited as D. L. Hart, (born April 19, 1957) is an American outsider musician, puppeteer and actor. He is best known for his appearances on Adult Swim's Tim and Eric Awesome Show, Great Job!, performing bizarre puppetry and singing in a variety of voice characterizations. He is also known in the Los Angeles area for his role as a puppeteer on The Junior Christian Teaching Bible Lesson Program, a local public-access television cable TV program, as well as for performing with his puppet "Doug the Dog" just outside the Hollywood Bowl and Los Angeles Music Center after shows, where he is known to many concert goers simply as the "puppet man". He has also been known at times as David Hart, David Lieber Mintz, David Unger Hart, David King Liebe Hart and DL Hart.

Tim and Eric Awesome Show, Great Job!
TV • 2007

Check It Out! with Dr. Steve Brule
TV • 2010

Tim and Eric Nite Live!
TV • 2007

Vampire Zombies...from Space!
MOVIE • 2026

Tim and Eric's Billion Dollar Movie
MOVIE • 2012

I Love David
TV • 2019

Check it Out! with Scott Clam
MOVIE • 2017

Bagboy
MOVIE • 2015

The Threee Geniuses
MOVIE • 2009

The People's Joker
MOVIE • 2024

Cool As Hell 2
MOVIE • 2017

Fish Piss
MOVIE • 2023

Tim and Eric Awesome Show, Great Job! Chrimbus Special
MOVIE • 2010

LovePump: A Guido Rockumentary
MOVIE

White Cop
MOVIE • 2014

Donald Farmer's Wild Ride
MOVIE • 2025

Public Access Hollywood
MOVIE • 2004

Leolex
MOVIE • 2013