Mason is Mikey's brother.
Background:
Mason Knolastname was born as one of the quadruplets to Moxxie and Millie. Often called Masey to his agitation (claiming it was a girl's name), Mason becomes a waiter at the Hellhound Hotel.
Appearance:
He has red skin, black horns, spikey black hair, and yellow eyes. He wears a black leather jacket with skulls on the shoulders and a chain on his belt.
Personality:
He is shown to be smart and thinks of himself as the brains of the group and despises The Laws of the Hell because of its lack of serving justice to criminals and murderers. Later, Mason became clever, and has a great mind for strategy, but is also bitter and protective at times.
Weapons and abilities:
He uses a gun.
Relationships:
V: Mason is shown to have a good friendship with V
Charlotte: Mason has a good relationship with Charlotte.
Candi, Dragonfly, Cricket, and Katydid: Mason is on good terms with the prince and princesses of Gluttony.
Loona: Mason has a good relationship with Loona.
Blitz: Mason loves Blitz, stating he was like an uncle to him.
Moxxie and Millie: Mason loves his parents dearly.
Stolas: Mason is shown to have a good relationship with Stolas.
Octavia: Mason and Octavia have a good relationship.
Fizzaroli: Mason and Fizz have a good relationship.
Asmodeus: Mason and Ozzie have a good relationship.
Beelzebub: Queen Bee and Mason are on good terms.
Vortex: Vortex and Mason are on good terms.
His siblings: Mason is very protective of his siblings.
Ocha, Olivia, and Silas: Mason has a good relationship with the Goetia triplets.
The Hellhound Siblings: Mason has a strong relationship with the hellhound siblings.
Valerie Mayday and her friends: Mason is on good terms with Valerie and her friends.
Pax and Novas: Mason is shown to have a good relationship with the princes of Lust.
Hazbin Hotel team: The Hazbin Hotel team have all grown to like and respect Mason.
Trivia:
Mason is the most mature out of his siblings.
He is one of the best shooters in hell.