Marvel Chronology Project

Hawkeye
Kate Bishop
The Owl
Hammerhead
Tombstone
Madame Masque
Kingpin
a female boss I don't recognize
Ringmaster
Swordsman V (unnamed actually)

Also:
Arrow the Dog
Cirque du Nuit

Could that female boss be Justine Hammer?

I doubt that, Justine Hammer had red hair and she's not a crime boss.
And I thought we didn't track groups (Cirque du Nuit is bad French for Night Circus, it isn't a character)

I'm all in favor of noting named groups if members shown are unnamed (e.g., AIM scientists, HYDRA agents, Hand ninjas), not so much for eventual MCP listings as for future Index-type references. Cirque du Nuit performers would fall under that heading.