Master Chester
The Master told him to leave...forever...and the Doctor ran and ran and ran until he couldn't run anymore. Unable to find Not My Rose or Donna, he returns to the Red TARDIS, pulls Chester the giant teddybear out of Theta's bed -- his prize from bagging the Lost Doctor awhile back -- and puts one of the Master's hoodies on the thing. The Doctor is trying so very hard to reconnect wit hthe Master now that he's been banished from the junkyard. NYC Jack comes to tell him that the Master is going to blow himself up and Theta joins him for Theta-Brand Comfort.