Marvel Chronology Project

Main Story

Deadpool (Wilson)
Negasonic Teenage Warhead
Domino
Massacre
Justica, Massacre's jaguar
Machine Man
Gorilla Man (Hale)
Hit-Monkey

Later

citizens of Atlanta, Georgia
Deadpool (Wilson)
Negasonic Teenage Warhead
Domino
Massacre
Machine Man
Gorilla Man (Hale)
Hit-Monkey
The Clown and other clowns
Princess Python and her python
Fire-Eater
Strong Man
Ringmaster
Livewire
Flying Gambonnos
Human Cannonball

Later

SHIELD Agents aboard the Helicarrier Triton
Deadpool (Wilson)
Negasonic Teenage Warhead
Domino
Massacre
Machine Man
Gorilla Man (Hale)
Hit-Monkey
Dum Dum Dugan (an LMD)
SHIELD Agent Clarissa Haines