Self - Host / Various Characters / C.S. Forester

Derek Waters

Guest Star

Thomas Middleditch

Ernest Thompson Seton / Fred Rogers / Gordon Cooper

Colin Hanks

Thomas Edison / Jim Bowie / Carl Sagan

Chris Parnell

Guest Star

Jesse Plemons

Guest Star

Rob Riggle

Guest Star

Rob Corddry

Guest Star

Liev Schreiber

Guest Star

Michael McKean

Host

Steve Berg

Guest Star

Lin-Manuel Miranda

Guest Star

Vanessa Bayer

Guest Star

Elizabeth Olsen

Guest Star

Kyle Mooney

Guest Star

Alia Shawkat

Guest Star

Michael Cera

Guest Star

Kat Dennings

Guest Star

Joe Lo Truglio

General Andrew Jackson / Alan Freed / Clarence Darrow

Jack McBrayer

Guest Star

Taylor Schilling

Guest Star

Thomas Lennon

Guest Star

Mae Whitman

Various

Bennie Arthur

Guest Star

Kevin Pollack

Guest Star

John Cho

Guest Star

Busy Phillips

Guest Star

David Koechner

Guest Star

Billie Joe Armstrong

Guest Star

Rachel Bilson

Guest Star

Ed Helms

Guest Star

Aubrey Plaza

Guest Star

Mariah Wilson

Ron Funches

Guest Star

Ken Marino

Various

Maria Blasucci

Guest Star

Alexandra Grey

Guest Star

Samm Levine

William Clark / Various / Frédéric Auguste Bartholdi

Taran Killam

Edward Cope / Meriwether Lewis / James Monroe

Tony Hale

Various

Craig Cackowski

Guest Star

Andrew Rannells

Guest Star

Juno Temple

Guest Star

Sugar Lyn Beard

Guest Star

Allison Tolman

Guest Star

Chris Witaske

Guest Star

Kevin Farley

Guest Star

Dwight Yoakam

Guest Star

Sarah Ramos

Art Heist Investigator / Stetson Kennedy / Robert Wilson

Jason Ritter

Narrator

Craig Anstett

Guest Star

Louie Anderson

Guest Star

Ben Folds

Guest Star

Josh Charles

Guest Star

Bokeem Woodbine

Various

Jeremy J. Tutson

Guest Star

Brendan Sexton

Guest Star

Patton Oswalt

Guest Star

David Wain

Guest Star

Jenna Fisher

Guest Star

Michaela Watkins

Various

Tymberlee Hill

Narrator

Rich Fulcher

Guest Star

Anthony Edwards

Guest Star

Ronda Rousey

Narrator

Phil Hendrie

Various

Sarah Burns

Guest Star

Dave Grohl

Various

Michael Daniel Cassady

Various

Adam Nee

Various / Fireman

Mike Coleman

Various

Mort Burke

Narrator / Robert S. Abbott

Daryl J. Johnson

Elvis Presley / William Mulholland / Vincenzo Peruggia

Jack Black

Marshall Ratliff / Johnny Cash / Ponce De Leon

Johnny Knoxville