|Control, Part 1|
|Season 4, Episode 19 (79)|
|Brainiac (episode)||Control, Part 2|
- Katie Cassidy Rodgers as Laurel Lance/Black Canary
- Katrina Law as Nyssa Raatko
- Jessica de Gouw as Helena Bertinelli
- Willa Holland as Thea Queen/Speedy
- Katie McGrath as Tess Luthor
- Chyler Leigh as Alexandra Danvers
- with Amy Acker as Brainiac
- and Katheryn Winnick as D.I.S.C.O.R.D.
Special Guest StarsEdit
- Michael Rosenbaum as Lex Luthor (Earth-30)
- Caity Lotz as Sara Lance
- Kristin Kreuk as Evelyn Langstrom
- Antagonists: Tess Luthor, D.I.S.C.O.R.D., Alexandra Danvers
- This episode takes place entirely inside the Talon.
- 4th episode this season to feature all main characters.
- This episode takes place on May 22, 2020,
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