Suggestions by @darkstorm

Andrea Romano

as Choreographer in Ben 10/Justice League: The Series

Andrea Romano

as Director in Ben 10/Justice League: The Series

Robert Ochoa

as Billy Batson in Justice League

Jacob Tremblay

as Billy Batson in Justice League

Sean Astin

as Shazam in Justice League

Cameron Bowen

as Superboy/Conner Kent in Justice League

Phil LaMarr

as Static/Virgil Hawkins in Justice League

Jake T. Austin

as Blue Beetle/Jaime Reyes in Justice League

Greg Cipes

as Beast Boy/Garfield Logan in Justice League

Kevin Michael Richardson

as Dr. Fate/Kent Nelson in Justice League

Khary Payton

as Aqualad/Kaldur'ahm/Jackson Hyde in Justice League

Yuri Lowenthal

as Tempest/Garth in Justice League

Ray Chase

as Etrigan/Jason Blood in Justice League

Carl Lumbly

as Martian Manhunter/J'onn J'onnzz in Justice League

Tom Kenny

as Plastic Man/Patrick O'Brien in Justice League

Dana Snyder

as Plastic Man/Patrick O'Brien in Justice League

Michael T. Weiss

as Captain Atom/Nathaniel Adams in Justice League

Jason Spisak

as The Flash II/Wally West in Justice League

Crispin Freeman

as Arsenal/Roy Harper in Justice League

Cameron Bowen

as Robin/Tim Drake in Justice League