Skip: 478 years old (Earth age equivalent: 48), Skip may not be large but he's certainly in charge - even when things don't go his way. He's continually frustrated with his team, and he's not afraid to knock them around, especially brainy little Sparks. Work - taking over the Earth, that is - means everything to him which makes it even more frustrating for him when things go wrong.

Assassin: 238 years old (Earth age equivalent: 24), is the muscle in the alien team, but he leaves the brainy work to the others. He's confident and quick and has occasionally been known to go headfirst through a wall, not realizing that it might actually hurt. But that doesn't mean he isn't two and half feet of trouble for the Earthlings he has been assigned to conquer.

Razor: 218 years old (Earth age equivalent: 23), she is a one-woman powerhouse, brains and brawn all in one feisty package. She's annoyed when missions don't go well - because she knows that if she's on her own, she'd already be done. Her eyes are always on the prize - the planet to be conquered - and won't be stopped by anyone who gets in her way.

Sparks: 204 years old (Earth age equivalent: 21), Geeky, tech savvy Sparks is the kindest - and the most excitable - member of the group. Sparks want the rest of the team to like him, but this is a challenge, because - as some Zirkonians say - a brainy, considerate, and peaceful Zirkonian is hardly a Zirkonian at all!.