Lance Guest
(Alex Rogan / Beta Alex)
(Alex Rogan / Beta Alex)
Catherine Mary Stewart
(Maggie Gordon)
(Maggie Gordon)
Barbara Bosson
(Jane Rogan)
(Jane Rogan)
Norman Snow
(Xur)
(Xur)
Dan O'Herlihy
(Grig)
(Grig)
Robert Preston
(Centauri)
(Centauri)
Chris Hebert
(Louis Rogan)
(Louis Rogan)
John O'Leary
(Rylan Bursar)
(Rylan Bursar)
George McDaniel
(L'officier Kodan)
(L'officier Kodan)
Charlene Nelson
(La technicienne Rylan)
(La technicienne Rylan)
John Maio
(L'alien amical)
(L'alien amical)
Robert Starr
(Underling)
(Underling)
Al Berry
(L'espion Rylan)
(L'espion Rylan)
Scott Dunlop
(L'alien aux tentacules)
(L'alien aux tentacules)
Vernon Washington
(Otis)
(Otis)
Peter Nelson
(Jack Blake)
(Jack Blake)
Kay E. Kuter
(Enduran)
(Enduran)
Dan Mason
(Lord Kril)
(Lord Kril)
Peggy Pope
(Elvira)
(Elvira)
Meg Wyllie
(Grand-Mère Gordon)
(Grand-Mère Gordon)
Ellen Blake
(Clara Potter)
(Clara Potter)
Britt Leach
(Mr. Potter)
(Mr. Potter)
Bunny Summers
(Mrs. Boone)
(Mrs. Boone)
Owen Bush
(Mr. Boone)
(Mr. Boone)
Marc Alaimo
(Hitchhiker)
(Hitchhiker)
Cameron Dye
(Andy)
(Andy)
Geoffrey Blake
(Gary)
(Gary)
Bob Kenaston
(Oncle Bob)
(Oncle Bob)
Wil Wheaton
(L'ami de Louis)
(L'ami de Louis)
Bruce Abbott
(Le sergent Rylan)
(Le sergent Rylan)