|Season 6, Episode 17 (117)|
|Someone You Loved||Child of Atlantis|
- Katie Cassidy Rodgers as Laurel Lance
- Katrina Law as Nyssa al Ghul
- Jessica de Gouw as Helena Bertinelli
- Caity Lotz as Sara Lance
- Katie McGrath as Lena Luthor
- Odette Annable as Samantha Arias
- Jane Levy as Barbara Gordon
- Leven Rambin as Lyvia Luthor (credit only)
- and Justin Hartley as Oliver Queen (Earth-19)
Special Guest StarsEdit
- Willa Holland as Thea Queen/Speedy
- Max Theiriot as Hal Jordan
- Emily VanCamp as Bobbie Winchester
- Chyler Leigh as Alex Danvers
- Rose McIver as Stephanie Brown
- with Mehcad Brooks as James Olsen
- with Colton Haynes as Roy Harper (flashbacks)
- and Minka Kelly as Dawn Granger
- Antagonist: None
- Lyvia does not appear in this episode.
- This episode takes place on January 29, 2025.
Community content is available under CC-BY-SA unless otherwise noted.