Dennis Quaid

as Sander Goss

as “Cowboy” Jack Clement

as Duane 'The Wrecking Ball' Whitlock · 1 episode

as Carl Rikker

as Sam Houston

as Arthur

as Sheridan

as Narrator (voice)

as John Bouchart

as George Brandywine

as Rind - Shrouded Knight (voice)

as Keith Jesperson aka 'Happy Face Killer' · 8 episodes

as Harvey

as Ronald Reagan

as Frank Mitchell

as Marshal Sherrill Lynn · 8 episodes

as James Hill

as Birdwatcher

as Jeff McCusker · 6 episodes

as Doug White

as Jaeger Clade (voice)

as Narrator

as Beauchamp

as Dick Vermeil

as Wade

as Mason

as Narrator

as Don Quinn · 8 episodes

as Vice Admiral William 'Bull' Halsey

as Joe

as Kelly Johnson

as Charlie Peck

as Ethan Montgomery

as Hal Solinski

as Arthur

as Adult Ethan

as Head Ranger

as Wade Blackwood · 8 episodes

as Samuel Brukner · 20 episodes

as Lt. Colonel Roger Charles

as Narrator (voice)

as Michael Lennox · 14 episodes

as Charlie Wessler (segment "The Pitch")

as Carl

as Sheriff Ralph Lamb · 21 episodes

as Clay Hammond

as Henry Whipple

as Ramsey

as Ely

as Rev. Shaw Moore

as Tom Hamilton

as Ted Murphy · 1 episode

as Bill Clinton

as Bob Hanson

as Payton

as General Hawk

as Aidan Breslin

as Ben Schwartzwalder

as Lawrence Wetherhold

as Thomas Barnes

as Roven (voice)

as Voice

as President Staton

as Frank Beardsley

as Dan

as Frank Towns

as Jack Hall

as Sam Houston

as Cooper Tilson

as Frank Whitaker

as Jimmy Morris

as Gabe

as Arnie Metzger

as Frank Sullivan

as Jack 'Cap' Rooney

as Redbeard Krabs (voice) · 1 episode

as Hugh

as Nick Parker

as Jim Clay

as Joshua Rose

as FBI Special Agent Frank LaCrosse

as Joe Doe / William

as Uncle Tommy

1 episode

as Bowen

as Eddie Bichon

as Doc Holliday

as Narrator (voice)

as Arlis Sweeney

as Jeff Blue

as Wallace

as Jack Faulkner

as Jack McGurn

as Jerry Lee Lewis

as Gavin Grey

as Dexter Cornell

as Eddie Sanger

as Lt. Tuck Pendleton

as Remy McSwain

as Willis Davidge

as Alex Gardner

as Barry Morrow

as Gordon Cooper

as Mike Brody

as Art Long

as Kyle Hager

as Barry Morrow

as Extra at Graduation Ceremony

as Travis Child

as Lar

as Freddie Dupler

as Repairman (uncredited)

as Ed Miller

as Mad Grossman

as Mike

as Roy

as Phil Lawver

as Alan Darby

as Paul Morelli

as Frank

as Shark, Baseball Pitcher

as Bellhop

1 episode

Producer

Co-Executive Producer

Executive Producer, Director

Associate Producer