I belong to several 'Doctor Who' pages on Facebook. Back in March, this meme was posted to one of them:
Here was my response:
So that could be Alan Cumming as Nightcrawler or Kodi Smit-McPhee or even some other actor new to the role since we're dealing with a multiverse.
But definitely Dominick Monaghan as Merry Brandybuck and Karen Valentine as Alice Johnson.
(Or maybe Jayma Mays as a recastaway but with a sci-fi twist - she was reverted back to an ealrier age; she wasn't just picked up back in the late 1960s.
I think the four of us would make for a great team. Not sure if I could be any kind of match for the Doctor on the science front. I'd just be in it all as a Time Tourist.