Joker: Put on a Happy Face

Kevin Conroy

Narrator (voice)

Neal Adams

Self

Will Arnett

Self

David Ayer

Self

Christian Bale

Self

Brian Bolland

Self

Alan Burnett

Self

Tim Burton

Self

Mike Carlin

Self

Bradley Cooper

Self

Dan Didio

Self

Paul Dini

Self

William Dozier

Self (archive footage)

Zach Galifianakis

Self

Maggie Gyllenhaal

Self

Mark Hamill

Self

Klaus Janson

Self

Geoff Johns

Self

Jenette Kahn

Self

Emma Tillinger Koskoff

Self