|Season 2, Episode 4|
|H.I.V.E.||Losing Your Memory|
BIRTH OF THE PHANTASM- Having captured Andrea, Oliver tries to reason with the young woman and dissuade her from her path of vengeance. Malcolm receives an ultimatum. Diggle defends the people of Corto Maltese against the remaining H.I.V.E. agents and is unexpectedly rewarded. When Sara's behavior takes a drastic turn for the worse, Nyssa takes her to the Glades but Sara begins terrorizing the district.
- Katie Cassidy as Laurel Lance
- David Ramsey as John Diggle
- Willa Holland as Thea Queen (credit only)
- Katrina Law as Nyssa al Ghul
- Caity Lotz as Sara Lance
- Colin Donnell as Tommy Merlyn
- Audrey Marie Anderson as Lyla Diggle
- Deborah Ann Woll as Andrea Beaumont
- Bex Taylor-Klaus as Cindy
- with Stephen Amell as Oliver Queen
- and John Barrowman as Malcolm Merlyn/Ra's al Ghul
Special Appearance ByEdit
- David Morrissey as Julian Mercer (flashbacks)
- Antagonist: Damien Darhk
- The episode's title is Latin for "In the beginning".
- Thea does not appear in this episode.