|Season 4, Episode 3 (42)|
ASSASSINS & REVELATIONS- As the mysterious Greg Osborne begins targeting DC's surviving politicians, Laurel Lance adjusts to the team's new roster. Thea Queen reaches out to Helena Bertinelli, who has relocated to Gotham, for advice. Nyssa Raatko, Alexandra Danvers, and Carrie Cutter learn that the Queens were involved in clandestine government programs prior to The Convergence. Alexandra Danvers learns that Leticia Luthor is the person for whom Greg Osborne works. When Alex is kidnapped by Osborne, she is taken to the Elmond base of operations for their newest scheme. Meanwhile, Laurel Lance, Nyssa Raatko, Thea Queen, and Ray Palmer match wits with a dangerous individual sporting a familiar face. While Alexandra Danvers has a revelatory conversation with D.I.S.C.O.R.D. in the bowels of Project Prometheus' laboratory, still-struggling Thea Queen tracks down a wayward Roy Harper. Laurel Lance interrogates Tess Luthor, who plays mind games with the Birds. Ray Palmer works to perfect his new ATOM suit. Talia al Ghul returns, intent on avenging herself on Thea Queen. Laurel Lance and Nyssa Raatko have wildly differing reactions to Talia, prompting Thea to take matters into their own hands. Carrie Cutter "helps" Ray Palmer with his new suit. D.I.S.C.O.R.D. springs Tess Luthor.
- Amy Acker as Brainiac
- Odette Annable as Samantha Arias
- Katie Cassidy as Laurel Lance/Black Canary
- Jessica de Gouw as Helena Bertinelli
- Amy Gumenick as Carrie Cutter/Cupid
- Justin Hartley as Oliver Queen (Earth-19)
- Willa Holland as Thea Queen/Speedy
- Katrina Law as Nyssa Raatko
- Chyler Leigh as Alexandra Danvers
- Teressa Liane as Agrippina
- Caity Lotz as Sara Lance
- Katie McGrath as Tess Luthor
- Leven Rambin as Lyvia Luthor
- and Katheryn Winnick as D.I.S.C.O.R.D.
Special Guest StarsEdit
- Michael Rosenbaum as Lex Luthor (Earth-30) & Lex Luthor (Earth-10)
- Susanna Thompson as Moira Queen (flashbacks)
- Kristen Kreuk as Evelyn Langstrom
- Colton Haynes as Ray Harper
- Deborah Ann Woll as Andrea Beaumont/The Phantasm
- Lexa Doig as Talia al Ghul
- Callum Blue as Greg Osborne/Black Arrow
- Brenda Strong as Leticia Luthor
- Deborah Ann Woll as Whisper A'Daire
- with Max Theiriot as Hal Jordan
- and Brandon Routh as Ray Palmer/ATOM
- Jamey Sheridan as Robert Queen (flashbacks)
- Antagonists: Greg Osborne, Tess Luthor, Moira Queen (flashbacks), Robert Queen (flashbacks)
- First full appearance of Tess Luthor.
- This is the first season premiere to not feature Nyssa al Ghul.
- This episode takes place on January 5-8, 2020.