Chip- Possessed by Cassandra (Doctor Who Series Two)

First Appearance: Doctor Who Series One Episode Two: "The End of the World" (Cassandra)

Doctor Who Series Two Episode Two: "New Earth" (Chip)

Played By: Sean Gallsgher

The force grown clone of the Lady Cassandra O'Brien to work for her as her personal servant, Chip was willing host for the psychografted soul of Cassandra after she released Rose Tyler's body.


"New Earth"

Upon the: defeat of "The Flesh", the arrest of the remaining Sisters of Plenitude and the teleportation of the Face of Boe, the Doctor demands that Cassandra leaves Rose's body. However she begins to cry stating that she "doesn't want to die" and asks for his help.

She is excited to see that Chip had survived, who tells her that "he had kept himself clean for you." Realising what he had said, the Doctor orders Cassandra not to use Chip as "a volunteer" as he "has a life of his own." Chip counters this with the fact that he "worships" her and that he would gladly "welcome her." She relinquishes her control of Rose and passes into Chip's body.

Examining himself, Cassandra comments that she looked like "a walking doodle." The Doctor tells him that "you can't stay in there", proposing to take her to New New York and "build a skin tank" in order to "stand trial for what you've done." He jokes that this request sounded dramatic, calling it "my finest hour" and that he was wearing "his finest hat." He continuous to tell them that they have little time due to the stress put on Chip, having read his mind and feel his vitals, "being a half life" and notes that his heart was "failing". She begins to wonder if Chip will last much longer when he suddenly collapses. The Doctor and Rose catches him and Cassandra understands that both herself and Chip are "dying", but calmly accepts the fate. The Doctor tries to persuade him to go with them to "the city", but she comments everything on the planet is "new" and that "there is no place for Chip and me anymore." He tells the Doctor that he is "right" and that it was "time to die." The Doctor says he can do one final thing for her.

The Doctor takes Cassandra back to the night of a party for the Ambassador of Thrace, where he sees her former self conversing with a throng of laughing guests enjoying her complaints about "Egypt... and the Mosquitoes." Overwhelmed, he thanks the Doctor who tells her to "just go and not look back." Rose wishes him good luck and he gives her a kind nod, before making his way towards the younger Cassandra. 

As she leaves calling them "naughty people" and grandly wishing them "A biantot", Chip addresses her (herself), who thinks he is part of the staff at the party and tells him that she didn't "need anything right now, I'm fine, thank you." Stopping her, he tells her that "you look beautiful". The younger Cassandra thinks little of this comment, but thanks him by saying that was "very kind, you strange little thing." He goes on that he meant it, taking a step towards her and sincerely tells her that "you look... so beautiful." Moved she thanks him before he suddenly collapses right in front of her. She asks him if he is alright, holding onto him and demanding that someone can help him and call a "medic." Another guest asks who "he" was and Cassandra reveals that she didn't know and that she didn't "even know his name". She brushes his head gently, whispering that it "was alight. I've got you." She comforts him as her older self dies along with him, rocking him slightly on her knees and soothingly calling him "a poor little thing."