Carol Perkins

Enemys on screen,

Two precious pals in reality

Credit bts gallery

I remember someone telling me that Stranger Things is about redemption, however, not every character got a redemption arc and I can name a few who did not.

Tommy Hagan

Carol Perkins

Agent Connie Frazier

Larry Kline

Grigori

Tom Holloway

Bruce Lowe

Ozerov

The scumbag and sleaze (Hargrove and Byers, beyond redemption)

Lt. Col. Jackass Sullivan (way beyond redemption, although he may appear S5)

Warden Melnikov (way beyond redemption)

Jason Carver

Yes, Vecna himself was also offered the chance, but he dropped the ball on it.