Roger was born on an unnamed planet in AD 410.[14] Although Roger has shown an affinity for the cold,[15] has remarked that snow reminds him of his home world and that he learned to ice-skate there,[16] Roger's planet and species are never specifically named nor seen. Roger also has purple blood (green blood in an earlier episode) and has on one occasion demonstrated to be capable of moving at superhuman speed (slowing down time and moving at normal speed).

It is also revealed that he records an individual's memories after sexual fingering. On his home planet, Roger worked as a greeter at a...