Trials of X

Blob

Fred Dukes

Brian Braddock

Captain Britain

Lockheed

Marvel

Mr. Sinister

Nathaniel Essex

Sunfire

Shiro Yoshida

Karma

Xi'an Coy Manh

Rictor

Julio Richter

Pyro

St. John Allerdyce

Mirage

Dani Moonstar

Meggan Braddock

Excalibur

Shatterstar

Gaveedra Seven, typically from Mojoverse

Wolverine

Laura Kinney

Destiny

Irene Adler

Daken

Akihiro

Anole

Victor Borkowski

Wild Child

Kyle Gibney

Synch

Everett Thomas

Callisto

Morlock

Merlyn

Marvel, Otherworld

Thunderbird

John Proudstar

Black King

Sebastian Shaw

Exodus

Bennet du Paris, from Marvel

Scalphunter

Marvel, Marauders

Pete Wisdom

Marvel, MI13/Excalibur

Cecilia Reyes

Marvel, mutant

Phoebe Cuckoo

Stepford Cuckoo

Goblin Queen

Madelyne Pryor

Shadow King

Amahl Farouk

Celeste Cuckoo

Stepford Cuckoo

Irma Cuckoo

Stepford Cuckoo

Masque

Morlocks

Empath

Manuel de la Rocha

Morgan Le Fay

Marvel

King Arthur

Marvel, Arthurian legend

Opal Luna Saturnyne

Excalibur, typically of Earth-9

Captain Britain

Betsy Braddock

Prestige

Rachel Grey Summers, typically from Earth-811

The Red Queen

Kate Pryde

Jamie Braddock

Marvel

Psylocke

Kwannon's body, Betsy Braddock's mind

Sophie Cuckoo

Stepford Cuckoo

Tempo

Heather Tucker, MLF

Blockbuster

Marauders

Esme Cuckoo

Stepford Cuckoo

Scout

Gabby Kinney

Shogo Lee

Son of Jubilation Lee

Christian Frost

X-Men

Spider-Man

unspecified

Bei the Blood Moon

Arakko

No-Girl

Martha Johansson

Rain Boy

Carl Aalston

Isca the Unbeaten

Arakko

Cosmar

Natashia Repina

Lourdes Chantel

Hellfire Club

Galura

Gabrielle Diwa

Black King

Kade Kilgore

Margaret Braddock

Marvel, Excalibur

Black Bishop

Maximilian Frankenstein

White Queen

Wilhelmina Kensington