Todd Slavkin and Darren Swimmer are an American screenwriting and producing duo. They have generally worked in the genres of science fiction and fantasy. They have served as showrunners for the TV shows Smallville, Melrose Place, Shadowhunters and The Mysterious Benedict Society, and have also been involved in the shows No Ordinary Family, Alphas, Defiance, Dominion and Guilt. Slavkin has occasionally directed episodes of the TV series in which they are involved.