Criminal Minds Celebrity Guest Stars
From Evan Peters to Amber Heard, Here Are Some of the Biggest Stars to Appear on "Criminal Minds"
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Curry played arguably one of the most vicious unsubs in the history of "Criminal Minds" — Billy Flynn. The brutal serial killer and rapist, notoriously dubbed The Prince of Darkness, would wipe out whole families during blackouts in California, leaving behind the children who'd then be faced with the abject horror and trauma of finding their family members dead. His twisted and sick motives are enough to send shivers down anyone's spine. The English actor first appeared in the season five finale, "Our Darkest Hour," with a cliffhanger ending leading to his season six opening appearance in "The Longest Night."