It's been around for more than 20 years so there are many. By far the most popular is the Daleks, led by Davros a mad scientist, followed by the Cybermen.
"Slitheen" is just the aliens' family name. They are actually Raxacoricofallapatorians.
The Doctor met the Face of Boe when Christopher Eccleston was the Dotor and he was at in a spaceship watching the end of the Earth with other aliens. This was the second episode of the first series (2005).
There are no such thing as aliens
Paul Kasey plays lots of different parts in Doctor Who, he is their 'monster actor' meaning he plays different aliens and monsters who wear full costumes and masks. His face isn't seen and he usually doesn't speal. He plays lots of different aliens and monsters such as the Ood, Judoon, the Blowfish in Torchwood, the Hoix, a pig slave, a clockwork robot, and cybermen.
im sorry but there is no aliens 8)
The new doctor who series six aliens are called The silence! These are not the only new aliens for this series but so far the only ones!
They are called Scardox Aliens.
The Sycorax were the aliens in Doctor Who with the blood control.
Daleks
yes
Jose, Juan, Pablo, and many more
Kayla doersy
napasapa
Hannah, Rickey, Tom, Stew, Nate,Bethany,Lee,Heart. Aliens names Sparks, Razor,Tazer and Lazer
Doctor Who - 2005 Aliens of London 1-4 is rated/received certificates of: UK:PG USA:TV-PG
No they do not.There were once aliens in 1613 when doctor Reble Hound discovered them in the dark seas of Tinerstell
The aliens that are being features for the Adventure Games at the moment are the Vashta Nervada.