Christopher Meloni as Hal Jordan (voice)

Victor Garber as Sinestro (voice)

Michael Madsen as Kilowog (voice)

Tricia Helfer as Boodikka (voice)

John Larroquette as Tomar-Re (voice)

Kurtwood Smith as Kanjar Ro (voice)

Larry Drake as Ganthet (voice)

William Schallert as Appa Ali Apsa (voice)

Olivia d'Abo as Carol Ferris (voice)

Juliet Landau as Labella (voice)

David L. Lander as Ch'p (voice)

Richard McGonagle as Abin Sur (voice)

Rob Paulsen as Weaponers (voice)

Kath Soucie as Arisia Rrab (voice)

Bruce Timm as Bug Boy (voice)

Jim Wise as Lieutenant (voice)