Enzo is a minor but recurring character in Stranger Things portrayed by actor Enzo Cilenti. He appears first in Season 3 as a technician working for the U.S. Department of Energy at the Hawkins National Laboratory facility and later reappears in Season 4 as part of the Soviet scientific team at the Gate.
Cilenti brings a calm, technical demeanor to the role, fitting the show’s depiction of Enzo as a competent scientist navigating high-stakes experiments. This overview clarifies who plays Enzo, when he appears, and how the character contributes to the series’ conspiracy and sci-fi elements without overstating his screen presence.