When the Justice League goes missing and villains overrun Metropolis, there's only one team that can solve this mystery: Scooby-Doo and the gang! But wait, there's a new dog in town – Krypto – Superman's Superdog with Super Powers. Mystery Inc. will need all the help it can get when phantoms menace the Justice League's headquarters.
as Scooby-Doo / Fred Jones (voice)
as Daphne Blake / Wonder Woman (voice)
as Shaggy Rogers (voice)
as Velma Dinkley (voice)
as J.B. (voice)
as Mercy (voice)
as Lex Luthor (voice)
as Computer / Joker / Superman (voice)
as Helen / Lois Lane / Harley Quinn (voice)
as Solomon Grundy / Perry White (voice)
as Jimmy Olsen / Rex Ruthor (voice)
as Mayor Flemming (voice)
