|Also known as:||Francisco Pizarro González|
|Planet of Origin:||Earth|
|Original era:||16th Century|
|Appears In:||The Incas|
|Portrayed By:||Robert Shaw|
In one of the First Inspector's earliest adventures, he and Susannah Overseer travel back to 16th-century Peru to defend established causality. They arrive in the highland city of Cajamarca where Pizarro has imprisoned the Incan emperor, Atahualpa. Pizarro is waiting for Atahualpa to complete his promise of filling his entire jail cell with gold as a ransom.
At first, the two Infinity Knights seem to take side of the Incas the against the outnumbered but technologically superior force of conquistadors. This proves to be only a ruse for them to win Atahualpa's trust in order to uncover the real threat: time-travelling alien astronauts from the planet Tsoukalo who are determined to assassinate Pizarro. The Inspector learns how in the fifth century CE, the Tsoukalons had taught the natives to map out a landing zone in the Nazca Desert for their eventual return. When they visited again three millennia later and find the indigenous culture wiped out, they blamed the Spaniard and sent a hit squad back in time.
Pizzaro allies himself with the Infinity Knight pair once they foil the plot against him, but he refuses Susannah's pleas on Atahualpa's behalf when the Inspector take his side. In the gripping final scene, the Inspector declares, "I want nothing to be different, not in the future, not in the past, not in all eternity!"—even as Atahualpa is lead away for execution.
- Shaw could not pronounce Atahualpa's name with any consistency, calling him Atabalipa or Atawallpa at various times over the serial.
- Although the Incan cast's costumes were painstakingly historically accurate, they did not cover enough of their bodies to avoid offending contemporary standards of decency (the first of many run-ins that the programme would have with media watchdogs).