Doctor Who (TV Series)

Mawdryn Undead: Part Four (1983)

Peter Davison: The Doctor

Photos 

Quotes 

• Tegan Jovanka : Doctor, why can't you help them?

  The Doctor : Don't you understand? If I did, it would be the end of me as a Time Lord.

  Tegan Jovanka : What do you mean?

  The Doctor : I can only regenerate twelve times. I have already done so four times.

  Tegan Jovanka : So?

  The Doctor : Don't you see? Eight of them; eight of me.

  Tegan Jovanka : They want your remaining regenerations?

  The Doctor : It's the only way to end their mutation.

• Nyssa : Will the mutants really travel through the rest of time?

  The Doctor : I'm afraid so.

  Nyssa : That's terrible.

  The Doctor : Sometimes you have to live with the consequences of your actions.

• The Doctor : I've got to program a temporal deviation to escape the warp ellipse.

  Brigadier Alistair Gordon Lethbridge Stewart : We stuck on this ship?

  The Doctor : I wonder... if I reverse the polarity of the neutron flow...

• Vislor Turlough : Doctor, may I join you?

  The Doctor : I think you already have.