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.
Frank Welker
as Scooby-Doo / Fred Jones (voice)
Grey DeLisle
as Daphne Blake / Wonder Woman (voice)
Matthew Lillard
as Shaggy Rogers (voice)
Kate Micucci
as Velma Dinkley (voice)
P.J. Byrne
as J.B. (voice)
Victoria Grace
as Mercy (voice)
Charles Halford
as Lex Luthor (voice)
Nolan North
as Computer / Joker / Superman (voice)
Tara Strong
as Helen / Lois Lane / Harley Quinn (voice)
Fred Tatasciore
as Solomon Grundy / Perry White (voice)
James Arnold Taylor
as Jimmy Olsen / Rex Ruthor (voice)
Niccole Thurman
as Mayor Flemming (voice)
