Gonna go ahead and repost this for the new episode tonight. I'm sure new people will be showing up on the regular as the show moves forward and I know the names can be tough if unfamiliar.
Felt like giving a 2-sentence bio for the plant employees to help keep these people straight. Since episode 1 just sort of jumped in to the aftermath, it's not at all clear who was doing what in the lead-up to the disaster.
Dyatlov: Deputy Chief Engineer. Gave the orders to the staff carrying out the experiment. Disregarded some key safety guidelines for the test, particularly those related to the power level necessary for stable operation.
Akimov: Night Shift Lead. Wanted to abort the test early due to unstable reactor conditions but was overruled. Was the person who finally activated the emergency shutdown, but it was too late and backfired due to a design flaw and ultimately triggered the explosion. Suffered a fatal dose of radiation while opening emergency pump valves.
Toptunov: Reactor Operator. Responsible for the actual movement of control rods in the reactor, which controlled the power level. Also wanted to shut down the test once the power level began to fluctuate wildly. Suffered a fatal dose of radiation while opening emergency pump valves with Akimov.
Stolyarchuk: Pump Operator. Noted irregular/insufficient water levels in the separator drums during the experiment. Survived the incident.
Bryukhanov: Plant Manager
Fomin: Chief Engineer
Perevozchenko: Foreman. Personally witnessed the shield on top of the reactor moving wildly shortly before the explosion but could not reach the control room to report it until after it already exploded. Suffered a fatal dose of radiation while searching for co-workers.
Yuvchenko: Held open the door to the reactor room for 2 junior technicians who had been ordered to manually lower the control rods (after the reactor had already exploded). While all 3 suffered what should have been fatal doses, Yuvchenko survived with serious injuries.
Stinikov: Deputy Chief Operational Engineer. Filled in for Dyatlov on the night of the incident after the latter fell ill. Suffered a fatal dose of radiation while observing damage from the roof.