Dalek
The Daleks returned in the 2008 series' two-part finale, "The Stolen Earth"/"Journey's End", accompanied once again by their creator Davros (now played by Julian Bleach).  It is revealved that Dalek Caan had forced himself back into the Time War, even though it was "time-locked" or prevented from entering by any means (the effort rendered him insane), where he rescued Davros; Davros then created a new army of Daleks from his own flesh.  The new Dalek army was led by a Supreme Dalek, who kept Davros imprisoned in a "Vault"; Davros said that he and the Supreme Dalek had reached "an arrangement".  Davros and the Daleks planned to destroy all creation with a 'reality bomb', which failed due to the interference of the Doctor and his companions, and due to Caan himself who had been manipulating the events unknown to either side. Though the Daleks were destroyed, the fate of Davros and Dalek Caan is unknown. 3 Daleks from this episode came back in Series 5 (Victory of the Daleks). They created 5 new, different colored daleks. These new Daleks escaped into space. Later, they showed up in "The Pandorica Opens" and trapped the Doctor in the Pandorica, the ultimate prison. After they were erased from time by the cracks, a stone Dalek showed up, which was an echo of the Dalek race. It was brought alive by the Pandorica light, which could restore thing which had been erased by the cracks. It was later shot in the eye by River Song. Their race, along with the rest of the universe, was brought back by the Doctor.