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Ariel Winter as Alex
Alex is the brains of the family; she's the middle child and often fights with her older sister. Winter has an impressive career in both film and television-- she voiced the role of Penny Peterson in the animated film, Mr. Peabody & Sherman, and appeared in the 1970s drama, Truck Stop. Other credits include Duress, Young Trixie, Speed Racer, The Chaperone, and One Missed Call. (Getty)
