: A two-part finale where Reese runs away to enlist after a heartbreak, and Hal faces potential jail time for his company’s legal troubles. Main Cast & Guest Stars Frankie Muniz Bryan Cranston Jane Kaczmarek Justin Berfield Erik Per Sullivan Christopher Masterson Notable Guest Cloris Leachman as Grandma Ida Notable Guest David Cassidy as Boone Vincent
: The family travels to Las Vegas after Hal has a prophetic dream about a jackpot. Dewey and Reese enter an obese rabbit into a competition while Lois meets her favorite singer, Boone Vincent. Malcolm in The Middle - Season 5
: Hal faces several bizarre crises, including being falsely accused of insider trading and joining a group of fathers who bet on their babies' developmental milestones. Key Episodes & Moments : A two-part finale where Reese runs away
: Directed by Bryan Cranston , this episode features Malcolm and Stevie needing the "unintelligent" Reese to help solve a complex scientific enzyme problem. : Hal faces several bizarre crises, including being
: Malcolm tries to prevent Dewey from being placed in the high-stress Krelboyne class, but Dewey's plan to fail the IQ test backfires, landing him in a class for emotionally disturbed students.