Sophie Oda

In the first part of the one-hour seventh season premiere, Sheldon and Penny bond in Leonard's absence, but it's Sheldon's feelings that are crushed when Leonard returns from the North Sea. Guest star Regina King returns as Mrs. Davis, the University's Director of Employee Relations.

Cody competes in a spelling bee against someone who loaned money to Zack.

Zack and Cody decide to open a teen club at the Tipton; London needs help naming her new cosmetics line.

Zack and Cody both reserve their father's empty apartment without the other's knowledge; London teaches Esteban to act wealthy.

Zack and Cody use a sophisticated boy to impress their dates; Maddie finds a cell phone and imagines its owner.

Zack becomes the anonymous writer of the school newspaper's advice column.