Overview

• CBS will debut Season 2 of Watson on October 13, 2025, at 10 p.m. ET on CBS, with episodes streaming the next day on Paramount+.
• Robert Carlyle joins the cast in a recurring guest role as Sherlock Holmes, partnering with Morris Chestnut’s Dr. John Watson.
• Holmes was last seen presumed dead after a fall at Reichenbach Falls, making his Season 2 appearance the character’s first on-screen return.
• Showrunner Craig Sweeny reveals that Holmes’s reemergence will force Watson to confront a long-buried secret hidden inside his own body.
• The series combines investigative storytelling with medical diagnostics, following Watson’s team of “doc-tectives” at a Pittsburgh clinic specializing in rare disorders.