Kevin Costner as Mariner

Dennis Hopper as Deacon

Jeanne Tripplehorn as Helen

Tina Majorino as Enola

R. D. Call as Enforcer

Gerard Murphy as Nord

Michael Jeter as Old Gregor

Rick Aviles as Gatesman

Kim Coates as Drifter

Chaim Jeraffi as Drifter

Sab Shimono as Elder

Zitto Kazann as Elder / Survivor

Rita Zohar as Atoller

Jack Black as Pilot

Zakes Mokae as Priam

Jack Kehler as Banker

Leonardo Cimino as Elder

Lanny Flaherty as Trader

Robert A. Silverman as Hydroholic

Henry Kapono Ka'aihue as Gatesman

Neil Giuntoli as Hellfire Gunner

Robert Joy as Ledger Guy

John Fleck as Doctor

Greg Goossen as Sawzall Smoker

William Preston as Depth Gauge

John Toles-Bey as Plane Gunner

Ari Barak as Atoll Man

Chris Douridas as Atoller

Alexa Jago as Atoll Woman

Sean Whalen as Bone

Robert LaSardo as Smitty

Lee Arenberg as Djeng

Doug Spinuzza as Spun

Hal Douglas as Narrator (voice) (uncredited)

Anne Gaybis as Deacon Gang Member (uncredited)

Annie Costner as Atoll Girl (uncredited)

John Otrin as Wild Lines (uncredited)

Michael Haddad as Smoker (uncredited)

Heidi Miller as Extra (uncredited)