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More villains appeared, such as Tony Zucco ( voiced by Mark Hamill, who voiced the Joker in the DC animated universe ), Killer Moth ( voiced by Jeff Bennett ), Black Mask ( voiced by James Remar ), Rumor ( voiced by Ron Perlman ), Everywhere Man ( voiced by Brandon Routh ), Harley Quinn ( voiced by Hynden Walch ), Francis Grey ( voiced by Dave Foley ), and the Basil Karlo version of Clayface ( voiced by Wallace Langham in the first appearance, Lex Lang in the second appearance ).

In his final appearance, Ethan Bennett, the first Clayface, is redeemed and cured of his condition.