The Ruining is a six-hour miniseries that serves as the climax of the crossover storyline known as The Convergence.
- Justin Hartley as Oliver Queen (Earth-19)
- Daniel Gillies as Elijah Mikaelson
- Shelley Hennig as Meredith Sulez
- Riley Voelkel as Freya Mikaelson
- Katie Cassidy as Laurel Lance
- Willa Holland as Thea Queen
- Katrina Law as Nyssa al Ghul
- Jessica de Gouw as Helena Bertinelli
- Michelle Ryan as Katherine Pierce
- with Jared Padalecki as Sam Winchester
- and Jensen Ackles as Dean Winchester
- Emily Swallow as Amara
- Olivia Wilde as Celine Laurent
- Nathaniel Buzolic as Kol Mikaelson
- Sendhil Ramamurthy as Davos
- Stephen Lang as Damien Darhk
- David Ramsey as John Diggle
- Rose McIver as Stephanie Brown
- with John Barrowman as Malcolm Merlyn
- and Lee Pace as Abraxas
- Multiple deceased characters will appear.
- This miniseries serves as the grand finale of the CW multiverse.