Erik Per Sullivan, who played Dewey on 'Malcolm in the Middle,' will not be returning for the revival series. Bryan Cranston says he is going to Harvard.

Sullivan is the only member of the core cast who's not returning for the reboot of the beloved family sitcom. Bryan Cranston was thrilled to reunite with his Malcolm in the Middle family for a revival series after nearly two decades off the air.

Although Frankie Muniz's titular pubescent in 'Malcolm in the Middle' was the genius of the family, it was the youngest who actually went Ivy League.