I must says I think the stone angels from Doctor Who, which just appeared in the 2 part episodes “The Time of Angels” & “Flesh and Stone” are the scariest Doctor Who villains out there. Sure the Daleks are the arch enemies of the Time Lords, but the stone angels are definitely the scariest. I must says I think the stone angels from Doctor Who, which just appeared in the 2 part episodes “The Time of Angels” & “Flesh and Stone” are the scariest Doctor Who villains out there. Sure the Daleks are the arch enemies of the Time Lords, but the stone angels are definitely the scariest.