Kim Delaney .... Dr. Samantha Hill,Beau Bridges .... President Paul Hollister,Frank Langella .... Dr. Hill,Melissa Sue Anderson .... First Lady Megan Hollister,Dean Cain .... Brad,Oliver Hudson .... Will,Carly Pope .... Laura,David Cubitt .... Dr. Jordan
Danny Lee Clark,Debbie Clark,Erika Andersch,Jim Starr,Lori Fetrick,迈克·霍顿,雷伊·霍莉特,Sha-Ri Pendleton,Shirley Eson,Steve Henneberry
Giorgio A. Tsoukalos 乔治·A·祖卡洛斯,Karen Meech 凯伦·米奇特,Travis Taylor 拉维斯·泰勒,William Henry 威廉·亨利,Jonathan Young 乔纳森·杨,Jason Martell 杰森·马泰尔,Andrew Collins 安德鲁·柯林斯,Erich von Däniken 埃里希·冯·丹尼肯,Hugh Newman 休·纽曼,……等多人