Натан Филлион

Guy Gardner / Green Lantern

Headpool (voice)

Master Karja

Cory Pitzner / T.D.K., T.D.K.

Hal Jordan / Green Lantern (voice)

Quinn

Green Lantern / Hal Jordan (voice)

John Nolan

Hal Jordan / Green Lantern (voice)

Sterling (voice)

Jacques Snicket (voice), Jacques Snicket

Green Lantern / Hal Jordan (voice)

Monstrous Inmate

Green Lantern / Black Adam (voice)

Johnny (voice)

Hermes

Hal Jordan / Green Lantern (voice)

Wernher von Braun

Johnny Worthington (voice)

Himself

Green Lantern / Mr. Freeze (voice)

Hal Jordan / Green Lantern (voice)

Himself

Hal Jordan / Green Lantern (voice)

The Holy Avenger

Self

Rainer Shine

Bob Waite

Richard Castle

Col. Steve Trevor (voice)

Runner

Nathan Fillion

Bill Pardy

Liver / Joel Larson (voice), American Businessman Klaus (voice)

Kevin Callis

Brown Widow (voice)

Frisbee Guy (voice)

Self

Mark Devereaux

Captain Malcolm "Mal" Reynolds

Alex Tully

Father David

Cliff

Minnesota Ryan

Caleb

Johnny Donnelly