Valuxian

The Valuxian are a shape-shifting race from the planet Valux.

History
Two of their species crashed land on Earth and while they wait to be rescued they decide to blend in as much as they can. Taking the names Brian and Sophie Johnson and they decide to become foster parents. The adopted thee orphaned children: Mel, Josh and Lucy Barker. The children soon discover that the Johnsons are in fact aliens from the planet Valux, who crash-landed on Earth when Brian tampered with the controls of their spaceship. As shown by the opening credits, the house they live in is actually a morphed form of their spaceship. They also have the ability to morph into other people. Brian and Sophie start out with a very limited and muddled knowledge of life on Earth, and the children must do their best to help them acclimatise. No one outside the family must ever learn that they are aliens, or they will be taken away for scientific testing, and the Barkers will lose another set of parents. The humour in the programme is surreal and sometimes gently subversive. Whilst being a children's show, it occasionally makes reference to rather mature matters, high-brow culture, and complex scientific thinking; and because of this it has also gained a considerable following of older viewers outside of its intended age range.

Members

 * Brian Johnson is a Valuxian alien and the cause of the Johnsons' crash-landing on Earth. Often childlike, he follows crazes and fads and gets bored easily, and is easily sucked into Josh's scams. He has little or no concept of morality, often creating difficult situations for the characters and only rectifying them because he is told to. Though he can morph at will, his allergy to ice cream makes him grow moose's antlers involuntarily whenever he eats it. He is, despite his personality, an excellent scientist, a trait that Lucy appreciates.
 * Sophie Johnson is a Valuxian alien and Brian's wife. She has slightly more common sense than Brian but is still quite clueless and easily led after enough persuasion. Unlike Brian, she is not good at morphing and can only do so when eating ice cream; after morphing into a new shape at the beginning of the third series, Sophie finds she is unable to return to her previous form, and decides to stay as she is (Carla Mendonça took up the role). Barbara Durkin returns as Aunt Sophie in the episode "Thanks for All the Earthworm Custard".

Trivia

 * http://myparentsarealiens.wikia.com/wiki/My_Parents_Are_Aliens