Cariad Lloyd in My First Planet

Unfortunately, Burrows the leader of the colony has died on the voyage, so his Number 2, Brian (Nicholas Lyndhurst) is now in charge. He's a nice enough chap, but no alpha male, and his desire to sort things out with a nice friendly meeting infuriates the colony's Chief Physician Lillian (Vicki Pepperdine - “Getting On”), who'd really rather everyone was walking round in tight colour-coded tunics and saluting each other. She's also in charge of Project Adam, the plan to conceive and give birth to the first colony-born baby. Unfortunately, the two people hand-picked for this purpose - Carol and Richard - were rather fibbing about being a couple, just to get on the trip.Add in an entirely unscrupulous Chief Scientist, Mason and also Archer, an idiot maintenance man who believes he's an "empath" rather than a plumber, and you’re all set to answer the question - if humankind were to colonize space, is it destined to succumb to self-interest, prejudice and infighting? (By the way, the answer’s “yes”. Sorry.)Cariad stars in the BBC Radio sci-fi sitcom tomorrow 11:30pm.