John DiMaggio is a voice actor who portrayed Toyman in Superman: Doomsday, Deimos in the Wonder Woman 2009 film, the Joker in Batman: Under the Red Hood, Merc in DC Showcase: Green Arrow, Samson and Ultra-Sphinx in All-Star Superman, Roughcut in DC Showcase: Catwoman, King Shark in Batman: Assault on Arkham, Lex Luthor and Deathstroke in Lego DC Comics Super Heroes: Justice League vs. Bizarro League, Killer Croc in Batman Unlimited: Animal Instincts, Lex Luthor and the Joker in Lego DC Comics Super Heroes: Justice League: Attack of the Legion of Doom, Tusk in Batman: Bad Blood, Brother Blood in Teen Titans, Mugsy and Rhino in The Batman, Tarmac in Static Shock, Alexi Nikolai, Dreamslayer, and Lord Havok in Justice League, Aquaman, Gorilla Grodd, Faceless Hunter, Mr. Freeze, Black Mask, and Taboo in Batman: The Brave and the Bold, Kothack in Green Lantern: The Animated Series, Brother Blood in Teen Titans Go!, and Lex Luthor and the Joker in Lego DC Comics: Batman Be-Leaguered. He voices Gorilla Grodd, Wildcat and Ambassador Bek in DC Super Hero Girls.

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