Third Aztec from the left at execution
From Tardis Wiki, the free Doctor Who reference
Third Aztec from the left at execution was a character on the BBC programme that a Dalek mutant had already appeared in as the inside of a Dalek. In 1964, the mutant worried at the bar in The Resting Ham that he would end up typecast as the innards of the Dalek because he had not been called back after auditioning for the Aztec role. (NOTVALID: Doctor Who? 188)
