Casey Affleck and Ben Affleck

Casey and Ben Affleck are the original hilarious, mischievous, totally-could-have-been-the-troublemakers-in-your-high-school pair. Look at 'em now: adorable dads. Ben's got Violet, Seraphina, and Samuel, and Casey's got Atticus and Indiana-among them, we may well see some power-cousin ensemble casts.