
The show’s return will feature both beloved characters and exciting new faces. Keeley Karsten will play Leah, Malcolm’s teenage daughter, and Vaughan Murrae joins the cast as Kelly, the youngest sibling. Kiana Madeira will portray Tristan, Malcolm’s girlfriend, adding a new dimension to his life. Long-time fans will also notice a recasting of Dewey, now played by Caleb Ellsworth-Clark.
The story picks up twenty years later, revealing Malcolm has taken an unexpected path from his childhood genius. After years of avoiding his family due to their often-embarrassing behavior, he’s drawn back home by a big 40th wedding anniversary party thrown by Hal and Lois. They insist their middle son be there to celebrate with them, forcing a family reunion.