Suggestions by @sonictiger

Yuki Hayashi

as Composer in The Teen Titans

Olivia Wilde

as Producer in The Teen Titans

James Gunn

as Director in The Teen Titans

sonictiger

as Writer in The Teen Titans

Leslie Grace

as Barbara Gordon in The Teen Titans

Don Cheadle

as James Gordon in The Teen Titans

Daniel Craig

as Alfred Pennyworth in The Teen Titans

Louis Partridge

as "Jacob" in The Teen Titans

Myles Truitt

as "Jared" in The Teen Titans

Hunter Schafer

as "Jess" in The Teen Titans

Dave Bautista

as Trigon in The Teen Titans

Ryan Potter

as Speedy in The Teen Titans

Millie Bobby Brown

as Wonder Girl in The Teen Titans

Jharrel Jerome

as Cyborg in The Teen Titans

Finn Wolfhard

as Beast Boy in The Teen Titans

Jenna Ortega

as Raven in The Teen Titans

Taylor Russell

as Starfire in The Teen Titans

Dylan O'Brien

as Nightwing in The Teen Titans

Gal Gadot

as Wonder Woman in Cast Anything!

Jim Carrey

as Dr. Eggman in Cast Anything!