No one. Tuco was a character in The Good, the Bad, and the Ugly.
It was the second sequel to Fistful of Dollars. Tuco was the Ugly,
with Clint Eastwood playing the Good (sort of), and Lee Van Cleef
representing the Bad. Tuco, expertly played by actor Eli Wallach,
was a scummy lowlife with nothing to recommend him. Yet, it is
possible to sympathize with him, and he has been a memorable
character throughout the years.