Dan Schneider is suing the producers of ‘Quiet on Set’ for defamation. The 58-year-old producer launched careers of the likes of Ariana Grande, Miranda Cosgrove and Amanda Bynes through their various series on Nickelodeon but he is alleging that makers of the recent Discovery+ documentary have portrayed him as an abuser after showing him alongside dialect coach Brian Peck, who was sentenced to 16 months in prison for the rape of ‘Drake and Josh’ star Drake Bell in 2003. According to legal documents obtained by E! News, the ‘iCarly’ creator states he was not complicit in the abuse, “condemned t…