Time Zombies
Time zombies were versions of the Eleventh Doctor, Clara, and Gregor and Tricky Van Baalen from the near future. A tear in time caused them to appear in the TARDIS prior to their creation.
The four had been exposed to the TARDIS’ Eye of Harmony and their cells had liquefied and their skin was burnt. Gregor and Tricky had been fused together and the Doctor had his hand fused to his face.
After realising that their future could be rewritten, the Doctor escaped the Eye with Clara before they were transformed.
Appearances
Journey to the Centre of the TARDIS (TV)