Seraphina (Jules) Juliet Carstairs
17
The Sunshine Sweetheart
Love interest: Magnus Bane and Alec Lightwood

Jonathan (Jace) Will Herondale
17
The Blonde G.I. Joe F#ck boy
Love interests:Clary Fray/Fairchild

Alexander (Alec) Gideon Lightwood
18
The Black Cat Archer
Love interests:Magnus Bane and Jules Carstairs

Isabelle (Izzy) Sophia Lightwood
16
The "Evil" Shadow hunter seductress
Love interests:Raphael Santiago and Simon Lewis

Clarissa (Clary) Adele Fray/Fairchild
17
The
Love interest:Jace Herondale

Maryse Lightwood
41
The mom who just best for kids
Love interest:Luke garaway

Jocelyn Fray/Fairchild
41
The one who stole the mortal Cup
Love interests:Valentine Morgenstern and Luke garaway

Lucien (Luke) (garaway)/greymark
42
The Cop Who wanted to be a librarian
Love interests:Jocelyn Fray/Fairchild

Simon Lewis
17
The nerdy Vampire
Love interests:Izzy lightwood and Clary fray/Fairchild

Raphael (Raph) Santiago
300+
The Catholic Vampire
Love interest:Izzy Lightwood and Camille Belcourt

Magnus Bane
400+
The Glitter King
Love interests: Alec Lightwood and Jules Carstairs

Jem Carstairs
300
The only living ancestor
Love interest:Tessa Gary

Maia Roberts
16
The She-Wolf bestie boo
Love interest:Simon Lewis and Jordan Reyes

Church
Immortal
The Immortal Cat

Chairman meow
Unknown
The magic Cat

These are their ages in the books if you want to think of them like this pretend that their show ages
Except clary and Simon who's I just made up for plot reasons