which episode does he feature in?
"The Stolen Earth" episode
The Stolen Earth
"The Stolen Earth" is the first appearance of Davros
when did davros try to move the earth UNANSWERABLE who is this character? Davros is a character from the long-running British science fiction television series "Doctor Who"
wiki:16682618
The Stolen Earth [SEP] Davros
"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.