The name of Echo's crime gang is a Marvel comics deep cut with links to Daredevil season 3

Comic book fans were quick to notice that Marvel's newest series Echo contains a Daredevil universe deep cut.

Warning: mild Echo spoilers below!

In Echo episode 3, Henry's skating rink is overthrown by thugs who are determined to capture Maya, who has a bounty on her head, and return her to Kingpin. The group of thugs in question is known as the Black Knife Cartel, which is a deep cut from the Daredevil comic book universe.

The Black Knife Cartel made their first and only appearance in 2017's Bullseye #2. The cartel, led by a sadistic drug lord named Teodor Zarco, supplied weapons to every criminal organization in the United States. At the end of Bullseye #2, Teodor is killed by Bullseye and the cartel hasn't appeared in a Marvel comic since.

Bullseye, aka Benjamin Poindexter, first appeared back in 1976 in Daredevil #131. The ruthless killer, who possesses the ability to turn anything into a lethal projectile, would go on to become a major antagonist in The Punisher and Thunderbolts. Bullseye also became the main antagonist in season 3 of Netflix's Daredevil, and was played by Wilson Bethel.

In Echo, the gang is affiliated with Kingpin – and it's Kingpin who ultimately calls them off, letting Maya know that, despite shooting him point blank in the face, he's still alive.