The series follows Oliver Queen, billionaire playboy of Starling City, who is discovered on the mysterious island of Lian Yu five years after he and his father were shipwrecked. Upon his return to Starling City, he is reunited with his mother, Moira Queen, his sister, Thea Queen, and his friends, Tommy Merlyn and Laurel Lance.
- Stephen Amell - Oliver Queen
- David Ramsey - John Diggle
- Willa Holland - Thea Queen
- Paul Blackthorne - Quentin Lance
- Emily Bett Rickards - Felicity Smoak
- Katie Cassidy - Laurel Lance
- John Barrowman - Malcolm Merlyn
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