Shoal of the Winter Harmony
Not entirely unlike the Morpho of Morphoton on Marinus, the Harmony Shoal, as they were also known, were disembodied brains with eyeballs living in jars and manipulating those encumbered by whole bodies. Somehow, they travelled from planet to planet, taking over the indigenous population as they went along.
Decapitation, Cuckoldry and Rock Opera are but three of the romantic elements of this Christmas Special
Brains in jars, a squeaky interrogation toy and the DC and Marvel Universes collide in this Doctor Who Christmas Special