I AM DOCTOR WHO MAD!!!!!!!
Some Secrets (YOU HAVE BEEN WARNED)
BTW: I live in the UK, So some episodes may differ.
1) Kylie Mynogue will play as the Doctors Companion in the Christmas Special, which carries on from where Last of the Time Lords (Series 3, Episode 13) left off where the Titanic crashed into the TARDIS.
2) Catherine Tate will be taking over as the Doctors Companion for the whole of Series 4, and will be the same Character as she was in the 2006 Christmas Special, Donna Noble.
3) The Ood from Series 2 will be returning in an Episode called Planet of the Ood
But this time, Will they be Good or Bad?
(In Series 2, they were both)
Check out my Doctor Who Fan Site: http://www.doctor-martha.co.nr