Planet of origin: Mars
This martian creature is a savage and possibly non-sentient humanoid reptilian species which nurrishes itself with the fluids of other creatures, preferably animal, sucking them dry. Standing two meters tall, It has large three fingers hands and a large mouth with big pointy teeth. To survive the martian environment, it has developed a remarkable strenght and endurance, its thick scaly skin protecting it from most kinetic harm.
Contact was made with one of these creature in 1973 when a first manned mission to the red planet was decimated with only one survivor who was resued by another expedition aboard which ship a creature was able to stow away, killing part of the crew before they managed to throw it out the airlock.
Source: It! The Terror from Beyond Space is an independently made 1958 black and white science fiction film directed by Edward L. Cahn and written by Jerome Bixby.