Who is the special guest star? Scroll further down to find out what reviewer Patrick Mulkern reported ...
What I can tell you is that there’s a striking new TARDIS control room. We have a proper introduction to Matt Smith’s new co-star Jenna-Louise Coleman, who is dazzling and perky as Clara, and not as cocky as her looky-likey Oswin in Asylum of the Daleks.
Richard E Grant guest-stars as chilly Victorian misanthrope Dr Simeon. Tom Ward plays kindly but uptight widower Captain Latimer, living at spooky Darkover House with his two children (played by real-life siblings Ellie and Joseph Darcey-Alden).
The biggest coup, though, is getting Ian McKellen to provide the voice of the snowmen.
Richard E Grant guest-stars as chilly Victorian misanthrope Dr Simeon. Tom Ward plays kindly but uptight widower Captain Latimer, living at spooky Darkover House with his two children (played by real-life siblings Ellie and Joseph Darcey-Alden).
The biggest coup, though, is getting Ian McKellen to provide the voice of the snowmen.