Joel Robinson (Joel Hodgson)
Joel was the first human to be trapped up in space. He created the robots to
help him cope with his isolation, and eventually escaped with their
help.
Mike Nelson (Mike Nelson)
Mike took Joel's place aboard the satellite in the middle of the fifth
season. He quickly formed a bond with the robots, and is subjected to the
same kind of terrible movies that Joel dealt with earlier.
Crow T. Robot (Trace Beaulieu, Bill Corbett)
Crow is a long-limbed golden robot with two bowling pin halves serving as a
mouth. He is fairly high-strung and tends to cheat a lot. His middle initial
stands for "The".
Tom Servo (Josh Weinstein, Kevin Murphy)
Tom is short and red, with a bubblegum machine for a head. He is
intellectual, occasionally pompous, and has a wonderful singing voice.
Gypsy (Jim Mallon, Pat Brantseg)
Gypsy handles the higher functions of the satellite. Because she devotes all
of her energy to running the satellite, she appears rather dense in ordinary
conversation. She has a large purple head, and a very long plastic tube that
serves as her body.
Dr. Clayton Forrester (Trace Beaulieu)
Dr. Forrester is a very mad scientist. He shot both Joel and Mike into
space, forces them to watch the movies, and takes notes on their reactions.
He usually wears green laboratory-type clothing, and has a streak of white
in his hair and his moustache. He left the show after the seventh
season.
Dr. Larry Erhardt (Josh Weinstein)
Dr. Erhardt was Dr. Forrester's assistant during the first season. He had a
rather large head of black curly hair. Enough said.
TV's Frank (Frank Conniff)
Frank worked as Dr. Forrester's assistant for the second through the sixth
seasons, and they endured an emotional love-hate relationship during that
time. Frank wears black, has white hair that stands straight up, and sports
a little white curl of hair on his forehead.
Mrs. Pearl Forrester (Mary Jo Pehl)
Pearl, mother to Dr. Forrester, arrived on the scene during the seventh
season. Starting with the eighth season, she took over the task of sending
movies to the satellite. She is as demanding and mad as her son was.
Professor Bobo (Kevin Murphy)
Bobo is a humanoid monkey, in the spirit of Planet of the Apes. He assists
Pearl Forrester from season eight on, but is neither bright nor
independent.
The Observer a.k.a. Brain Guy (Bill Corbett)
The Observer is a super-intelligent humanoid who also assists Pearl
Forrester from season eight on. He carries his brain around in a dish, which
apparently is the prime indication of an evolved species. Despite his
supreme intelligence, Brain Guy still follows every order Pearl gives
him.