Previous Post I KNEW it was the Master! So Ian, what Masters were in those voice overs in Yana's head? It sounded like something from earlier in the old series. Very good stuff. I like how Jack is immortal (we see that on Torchwood, too) and the Doctor is so repulsed by that that he left him. We need to see Jack in the Old West and other eras. One thing, so Jack was picked up in WWII (he was a time traveler, a fact that we don't hear anything about) then traveled with Rose and the Doc. He was left in the future, traveled too far back and lived till the present. That means in WWII there were two Jacks. Cool. Another fun episode that would make. Oooo the Master seeps evil. I can't wait for the next two. This season sould have had more "Saxxon" forshadowing, but there were alot of fun single and double stories. Give and take. Great one. Can't wait till next.

... Besides (I assumed) Jacobi himself, saying "Summon me ...", were the first onscreen Master, Roger Delgado (receding hairline and salt-and-pepper hair and beard), saying "Destroy him ...", and Anthony Ainley, arguably the longest-running Master (slightly younger, with slicked-back brown hair and beard), doing his infamous chuckle.