Arrow
Sins of the Father
Season 4, Episode 13 · Aired 2016-02-10
Synopsis
Oliver refuses to kill Malcolm in return for Thea's cure, and Malcolm refuses to surrender rulership of the League to save his daughter. Civil war tears through Star City as the two factions fight it out. Meanwhile, Felicity discovers that the Calculator is her father and tests him to see if he can be trusted.
In the series
This episode is part of Arrow (2012–2020) on The CW.
Oliver Queen’s hooded crusade — the show that built the Arrowverse.
Key cast
- Stephen Amell as Oliver Queen / Green Arrow
- Katie Cassidy as Laurel Lance
- David Ramsey as John Diggle
- Emily Bett Rickards as Felicity Smoak
- Manu Bennett as Slade Wilson
- Colton Haynes as Roy Harper