Mustang

Mustang was a very minor character but also the secondary antagonist in the first season of ''Riverdale. ''He was a member of the Southside Serpents and one of main contributors to Jason Blossom's torture and murder.

He was portrayed by Christopher Rosamond.

History
He was first seen in the Serpent's usual hangout, a local pub called Whyte Wyrm when he was confronted by Archie Andrews after the latter mistook him for another serpent he saw vandalising his father's construction site and attacking one of his friends. Mustang was about to attack Archie however FP Jones intervened and stopped the confrontation between the two.

He was next mentioned when FP's right hand Joaquin revealed that Mustang had involvement with cleaning up the evidence of Blossom's body and took Archie and his friends to talk to him about it. When they arrived at the hotel he was staying at however they went into the bathroom only to find Mustang's dead body awaiting them in the bath. The police then suspected that Mustang died of drug overdose and did indeed have more involvement with the Jason Blossom case than he was letting on.

After Betty, Jughead and Kevin found a duffle bag they took it to Archie's house and opened it to find a USB drive inside of Jason's jacket. They put the drive inside of Archie's laptop and much to their horror saw video footage of Jason's murder where Mustang was seen torturing and taunting him awaiting Clifford Blossom to arrive and kill Jason.

Personality
Mustang was a wrathful, sadistic man as well as a thug. Not much more is known about him however due to his minor role however he apparently did show a level of respect for his fellow serpents.