Klaus Hargreeves/David "Dave" Katz FanFiction

Welcome

Welcome

F/F
F/M
Gen
M/M
Multi
Other
G
Updated
12.04.2025
Fandom
The Umbrella Academy (TV) The Umbrella Academy (Comics)
Characters
Fei Hargreeves, Sloane Hargreeves, Number Five | The Boy (Umbrella Academy), Klaus Hargreeves, Number Five | The Boy/Number Six | Ben Hargreeves, Number Five | The Boy/Viktor Hargreeves/Number Six | Ben Hargreeves, Klaus Hargreeves/David "Dave" Katz, Raymond Chestnut/Allison Hargreeves, Luther Hargreeves/Sloane Hargreeves, Vanya Hargreeves | Viktor Hargreeves, Number Six | Ben Hargreeves, Allison Hargreeves,
Tags
Alternate Universe - Canon Divergence Other Additional Tags to Be Added Vanya Hargreeves | Viktor Hargreeves Has Powers Vanya Hargreeves | Viktor Hargreeves Needs A Hug Parent Vanya Hargreeves | Viktor Hargreeves Parent Number Five | The Boy Good Parent Grace Hargreeves Parent Diego Hargreeves Lila Pitts Needs A Hug Parent Klaus Hargreeves
It was a normalish day for the Hargreeves family. Indie was sitting in the living room when a portal opened. She thought nothing of it as she wrote out a new song for the band to perform later that week. That was until they heard the voice of their f...
Free Falling

Free Falling

F/F
F/M
M/M
Multi
G
Updated
19.04.2025
Fandom
Harry Potter - J. K. Rowling The Umbrella Academy (TV)
Characters
Harry Potter, Hermione Granger & Harry Potter & Ron Weasley, Klaus Hargreeves/David "Dave" Katz, Vanya Hargreeves/Original Female Character(s), Diego Hargreeves/Eudora Patch, Vanya Hargreaves & Everyone, Allison Hargreaves & everyone, Klaus Hargreaves & Everyone, Five Hargreave & Everyone, Luther Hargreaves & Everyone, Ben Hargreaves & Everyone, Diego Hargreaves & Everyone,
Tags
Depression Female Harry Potter Eating Disorders but fun! all of them - Freeform Pre-Transition Vanya Hargreeves | Viktor Hargreeves crossover fic fem harry Buckle up people this one is going to be a doozy Ben does not die Five does not go to the future Vanya is a member of the Umbrella Academy
Helena Potter was done with being the Women-Who-Lived or whatever weird title they decided to give her. One day she was kidnapped tortured and murdered. At that point, she wasn't really surprised.Helena was then set before Fate and Death gave her an...
kneel before the king (i'm clean, i'm clean)

kneel before the king (i'm clean, i'm clean)

F/F
M/M
G
Updated
12.04.2025
Fandom
The Umbrella Academy (TV)
Characters
Original Female Character(s), Number Five | The Boy (Umbrella Academy), Klaus Hargreeves, Klaus Hargreeves/David "Dave" Katz, Allison Hargreeves, Diego Hargreeves, Luther Hargreeves, Ben Hargreeves, Vanya Hargreeves, Ben Hargreeves & Klaus Hargreeves, Number Five | The Boy & Klaus Hargreeves, Klaus Hargreeves & Everyone,
Tags
Fluff Angst with a Happy Ending Romance Drug Use Boys In Love Alcohol Abuse/Alcoholism Time Travel Fix-It No Incest No Apocalypse Klaus Hargreeves Needs A Hug David "Dave" Katz Lives Good Sibling Ben Hargreeves
Wherein Klaus runs away from his problems, Ben is Fed Up with his shit, Five would once again like to state for the record that all of his siblings are idiots and maybe, together, they can figure out how to fix Klaus and Dave's relationship.***Five p...
Fireproof

Fireproof

F/F
F/M
M/M
G
Updated
12.04.2025
Fandom
The Umbrella Academy (TV)
Characters
Original Child Character(s), Klaus Hargreeves, Klaus Hargreeves/David "Dave" Katz, Allison Hargreeves, Diego Hargreeves, Luther Hargreeves, Ben Hargreeves, Vanya Hargreeves, Ben Hargreeves & Klaus Hargreeves, Klaus Hargreeves & Everyone, David "Dave" Katz, Klaus Hargreeves/Original Male Character(s),
Tags
Fluff Angst Alternate Universe - Canon Divergence Hurt/Comfort Fluff and Humor Implied/Referenced Child Abuse Family Bonding Accidental Baby Acquisition Prostitution Kid Fic Implied/Referenced Drug Use Sober Klaus Hargreeves
"Did you know me and you must be fireproof with all the hell that we've been through." -Coleman Hell After a misguided deal with the Devil, Klaus Hargreeves' world is turned upside down - it won't be easy but maybe along the way he can learn to heal...