阿尔德希尔·拉德普尔
Ardeshir Radpour
饰：Persian Cavalry
Adam Neill
Adam Neill
饰：King Louis XIV
迈克尔·德
Michael Teh
饰：Fibonacci
Jason Nguyen
Jason Nguyen
饰：Asian Envoy Horseman
Jonathan Markley
Jonathan Markley
饰：Himself - Historian, California State Univ. - Fullerton
Gil Whitley
Gil Whitley
饰：Greek Infantry
Manuel Questel
Manuel Questel
饰：Persian Cavalry
Zoe Petillo
Zoe Petillo
饰：Early African Female
Kevin Mehrabi
Kevin Mehrabi
饰：Persian Infantry
Bryan Ludens
Bryan Ludens
饰：Crusader
Michael Kangaju
Michael Kangaju
饰：Early African Male
Kyle Kalama
Kyle Kalama
饰：Greek Infantry
Abraham Hernandez
Abraham Hernandez
饰：Persian Cavalry
Brian Fertal
Brian Fertal
饰：Conquistador
Claire Dodin
Claire Dodin
饰：Sumerian woman
Robert R. Cargill
Robert R. Cargill
饰：Himself
Elise Cantu
Elise Cantu
饰：Sumerian Woman
Martin K.A. Morgan
Martin K.A. Morgan
饰：Himself - Military Historian (as Martin Morgan)
Craig Benjamin
Craig Benjamin
饰：Himself - Co-Author, Big History: Between Nothing and Everything
Todd Surovell
Todd Surovell
饰：Himself - Archaeologist, Univ. of Wyoming
John Shea
John Shea
饰：Himself - Paleoanthropologist, SUNY - Stony Brook
Nicole Waguespack
Nicole Waguespack
饰：Herself - Archaeologist, Univ. of Wyoming
Trevor Valle
Trevor Valle
饰：Himself - Paleontologist, Page Museum - La Brea Tar Pits
Robert Bakker
Robert Bakker
饰：Himself - Paleontologist, Houston Museum of Natural Science
Jonathan Cohen
Jonathan Cohen
饰：Himself - Wildlife Biologist, SUNY ESF - Syracuse
Glen MacDonald
Glen MacDonald
饰：Himself - Director, UCLA Institute of the Environment
Russell Shapiro
Russell Shapiro
饰：Himself - Geologist, California State Univ.- Chico
Clifford Johnson
Clifford Johnson
饰：Himself - Physicist, Univ. of Southern California (as Clifford V
Peter Ward
Peter Ward
饰：Himself - Paleontologist, Univ. of Washington
Alex Flippenko
Alex Flippenko
饰：Himself, Astrophysicist - Univ. of California - Berkeley
科里·伯顿
Corey Burton
饰：Himself - Narrator
Alex Filippenko
饰：Himself, Astrophysicist - Univ. of California - Berkeley
Clifford V. Johnson
饰：Himself - Physicist, Univ. of Southern California
卡洛·达坎
Carlo Daquin
饰：Cotton Field Slave,(as Sean Carlo)
Jason Brye
Jason Brye
饰：Homo erectus