Vince Cosmos was a musician from the planet Glam. He also secretly fought extraterrestrial threats to the Earth.
Cosmos was born on Glam, but raised on Earth in East Dulwich. He acquired a map with the location of the souls of all the Martians on Earth, which he always kept with him. (PROSE: Hang onto Yourself)
On May Day, 1972, Iris Wildthyme and MIAOW prevented a coven of witches from summoning the Devil in Hobbe's End. They had a party afterwards, which Cosmos attended along with a number of other celebrities. (PROSE: From Wildthyme with Love) Cosmos began his music career that year. He was world-famous by 1979, when he decided to retire. He returned to Glam and walked into the desert while his friend Mr Glister watched. (PROSE: Hang onto Yourself)