Girl Meets World is about Cory (Ben Savage) and Topanga's (Danielle Fishel) daughter, but what kind of show would it be without an annoying sibling? Producers announced last month that Riley Matthews (11-year-old Rowan Blanchard) will have an older brother, Elliot.

Newcomer Teo Halm has been cast as the elder Mathews, and his parents are afraid he's inherited the "Eric Matthews Algernon gene"—Cory's older brother Eric seemingly got more and more dumb and the series went on. Fishel tweeted her delight last night at her new sitcom kids.

Why would people be mad? We're excited! It's hard to believe there's haters already. We're more surprised that the tweens have Twitter.