<Tr> <Th> Aliases </Th> <Td> The Robot, Robot B - 9 </Td> </Tr> <Tr> <Th> Model </Th> <Td> Class B - 9 - M - 3 General Utility Non-Theorizing Environmental Control Robot </Td> </Tr> <P> The Class B - 9 - M - 3 General Utility Non-Theorizing Environmental Control Robot, known simply as Robot, is a fictional character in the television series Lost in Space . His full designation was only occasionally mentioned on the show . </P> <P> Although a machine endowed with superhuman strength and futuristic weaponry, he often displayed human characteristics, such as laughter, sadness, and mockery, as well as singing and playing the guitar . With his major role often being to protect the youngest member of the crew, the Robot's catchphrases were "It does not compute" and "Danger, Will Robinson!", accompanied by flailing his arms . </P>

Was there a robot in the original lost in space