The Vigil Figurine - Doctor Who Figurine Collection.
Your figurine shows one of the Vigil as they appear in the 2013 story 'The Rings of Akhaten'. Though robotic in appearance the Vigil act like ghostly apparitions, appearing and disappearing in a puff of smoke. They use sound waves as a weapon, generating an acoustic blast to attack their adversaries.
Standing at 91mm, your figure comes complete with Skull mask and 'Radio Grille' mouth piece.
All the figurines are carefully produced in 1:21 scale, and cast in a specially formulated metallic resin before being painted by hand and individually numbered.