Kimberly McCullough will reprise her role as Robin Scorpio on Friday, May 21 as part of the "General Hospital" on-air tribute to the late John Reilly who portrayed Sean Donely on the soap. She isn't the surprise guest, however.

ABC has scheduled the long-awaited special tribute episode of "General Hospital" dedicated to the late John Reilly (Sean Donely). Find out when to watch, who'll take part, and what to expect.