Always thought of jack as the antagonist not Todd

Never mind sorry jack is there too

For me it's Lalo. God, he left a unerasable mark in both characters in BCS and in the fans

@NicoUC10 You can say the same thing about Chuck as well tho. Without him, Jimmy would never become Saul. But I agree, Lalo was the best villain and antagonist in the entire BB/BCS universe and the fact that he just started out as a throw away line is insane!