 " The Stolen Earth " is the first appearance of Davros since the 1988 serial Remembrance of the Daleks . Davies postponed Davros ' return as he thought that " Davros would dominate the Daleks ... like plain robots , instead of the scheming geniuses that they are " , and used the previous series to establish the Daleks ' individual intelligence . Davros was kept as a contingency plan for several occasions : the character would have appeared in " The Parting of the Ways " if the Emperor Dalek prop was too expensive ; and was " even a possibility " to reside in the titular prison in " The Satan Pit " . Davies wrote an origin story for Davros to clear up the character 's convoluted backstory which was eventually cut because of time constraints . 
