Michelle Monaghan Diana Prince / Wonder Woman (voice) Alan Tudyk Clark Kent / Superman (voice) Sean Astin Shazam (voice) Shemar Moore Victor Stone / Cyborg (voice) Christopher Gorham Barry Allen / The Flash (voice) Justin Kirk Hal Jordan / Green Lantern (voice) Jason O'Mara Bruce Wayne / Batman (voice) George Newbern Steve Trevor (voice) Zach Callison Billy Batson (voice) Bruce Thomas Desaad (voice) Rocky Carroll Silas Stone (voice) Georgie Kidder Freddy Freeman / Max / Additional Voices (voice) Hynden Walch Hannah Grace (voice) Dee Bradley Baker Parademons (voice) Ioan Gruffudd Thomas Morrow (voice) Richard McGonagle President (voice) Kimberly Brooks Darla (voice) John Mariano Ice Cream Vendor (voice) Roger Rose Pinstriped Loudmouth (voice) Matthew Mercer Guard (voice) Andrea Romano Green Lantern's Ring (voice) Gary Anthony Sturgis Teammate #2 (voice) Steve Blum Darkseid / Ocean Master (voice)