Adam and Steve

Adam was the Team Leader of a group of colonists who, along with Steve (Arts and Recreation officer) and other colonists, were captured and placed in a living exhibition at Wumba's World of Wild safari park for the entertainment of tourists. Grouped with dinosaurs, they fought hard for survival. (Dropping their trousers and showing their bum usually guaranteed something nice from the tour buses.) When they were finally freed with the help of the Tenth Doctor, Adam and Steve decided to stay behind on the planet to begin a new life. (COMIC: Save the Humans!)

Behind the scenes
Adam and Steve's names could be intended as a reference to "God created Adam and Eve, not Adam and Steve", a phrase stereotypically used by fundamentalists to denounce homosexuality.