弗里茨·韦弗
Fritz Weaver
饰:Narrator,1 episode, 1989,
保罗·希纳尔
Paul Shenar
饰:Narrator,2 episodes, 1988-1989,
理查德·基利
Richard Kiley
饰:Narrator,2 episodes, 1987-1988,
约瑟夫·索默
Josef Sommer
饰:Narrator,1 episode, 1988,
弗兰克·兰格拉
Frank langella
饰:Narrator,1 episode, 1990,
马克·雷纳德
Mark Lenard
饰:Narrator,1 episode, 1992,
Robert Bakker
Robert Bakker
饰:Self,1 episode, 1989,
Philip Currie
Philip Currie
饰:Self,1 episode, 1989,
Nick Sagan
饰:Self,1 episode, 1990,
Carolyn Shoemaker
饰:Self,1 episode, 1990,
Eugene Shoemaker
饰:Self,1 episode, 1990,
Andrew Ingersoll
饰:Self,1 episode, 1990,
乔尔·格雷
Joel Grey
饰:Narrator,1 episode, 1991,
Jack Horner
饰:Self,1 episode, 1989,
史蒂芬·杰伊·古尔德
Stephen Jay Gould
饰:Self,1 episode, 1989,
卡尔·萨根
Carl Sagan
饰:Self,1 episode, 1990,
Larry Soderblom
Larry Soderblom
饰:Self,1 episode, 1990,
Edward Stone
Edward Stone
饰:Self,1 episode, 1990,
Brad Smith
Brad Smith
饰:Self,1 episode, 1990,
詹姆斯·柯本
James Coburn
饰:Host (1990-1991),unknown episodes,