|Season 2, Episode 6|
|Losing Your Memory||A League Of Their Own|
- Katie Cassidy as Laurel Lance/Black Canary & Laurel Lance (Earth 2)/Black Siren
- David Ramsey as John Diggle/The Guardian
- Willa Holland as Thea Queen/Speedy
- Katrina Law as Nyssa al Ghul
- Caity Lotz as Sara Lance (credit only)
- Colin Donnell as Tommy Merlyn
- Deborah Ann Woll as Andrea Beaumont (credit only)
- with Stephen Amell as Oliver Queen/Arrow
- and John Barrowman as Malcolm Merlyn (credit only)
Special Appearance ByEdit
- Renee Elise Goldsberry as Meena Dhawan/Negative Flash
Special Guest StarsEdit
- Grant Gustin as Barry Allen/The Flash
- Candice Patton as Iris West-Allen
- Danielle Panabaker as Caitlin Snow
- Carlos Valdes as Cisco Ramon
- and Tom Cavanagh as Eobard Thawne/Reverse-Flash
- Antagonist: Eobard Thawne
- This episode takes place on May 11, 2016.
- Sara, Andrea, and Malcolm do not appear in this episode.
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