John Cena:
Brothers are Jeff and Matt Hardy
Roman Reigns:
Brothers are Cody and Dustin Rhodes and father is Dusty Rhodes
Dolph Ziggler:
Sister is Beth Phoenix
Jeff Hardy:
Cousin is Big Show
Randy Orton
Sister is Torrie Wilson
Seth Rollins:
Sister is Ronda Rousey
Rey Mysterio:
None in the company
Finn Balor:
Brother is Randy Orton
AJ Styles:
Sister is Liv Morgan
Elias:
None in the company
The Miz:
Parents are triple H and Stephanie McMahon
Kofi Kingston:
Cousins are Roman Reigns, Jey Uso, Jimmy Uso, And Sikoa, etc with that family.
Big E:
Brother is Kevin Owens
Xavier Woods:
Brother is sheamus
Matt Riddle:
None in the company
Drew McIntyre:
Cousin is Damien Priest
Jimmy Uso:
Sister is Alexa Bliss
Jey Uso:
Father is Shawn Micheals
Dean Ambrose:
Brother is Baron Corbin
Sheamus:
Brother is Drew McIntyre
Shinsuke Nacamora:
None in the company
Baron Corbin:
Cousin is Brock Lesnar
Edge:
None in the company
Dominik Mysterio:
None in the company
Tyler Breeze:
None in the company
Kevin Owens:
Father is Stone Cold Steve Austin
Austin Theory:
Brother is Finn Bálor