The following is a full listing of the cast for the episode "The Leaving Song".
- Chad Michael Murray as Lucas Scott
- James Lafferty as Nathan Scott
- Hilarie Burton as Peyton Sawyer
- Bethany Joy Lenz as Haley James
- Paul Johansson as Dan Scott
- Sophia Bush as Brooke Davis
- Barry Corbin as Whitey Durham
- Craig Sheffer as Keith Scott
- Moira Kelly as Karen Roe
- Henry Garrett as Droege Messenger
- Stephen Delaney as Policeman
- Richard Fullerton as Security Guard
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