Not to be confused with Cave Johnson, or Gabe Newell.

- StrongBrush1, Telltale Fanfic Theater 3000 MST of ITS MY LIFE!

Gabe Jonson is one of the students of Portal High School and the founder of Portal Labs. Later in his life, he changes his name to Cave to honor his dead twin brother.


Part of the Jonson family
Parents unknown
This character:
Gabe Jonson
Their siblings:
Cave Jonson
Spouse: Caroline
Biological children: Marrissa Roberts (via artificial insemination)
Adoptive children: Chell


Little is known about Gabe Jonson's past, other than that he was brothers with Cave Jonson and a student of Portal High School and came to be friends with the TEEN FORTRESS 2. Though, since the evil clones of the TEEN FORTRESS 2 refer to Cave as their leader, it is possible that Gabe is the leader of the good TEEN FORTRESS 2.

He first had an idea about portals after hearing about Robot and Roslalonde Lettuce. When he hears that a portal machine killed them, instead of a portal machine Gabe decides to build a portal gun.

When his girlfriend Caroline was shot by Cave, Gabe, in outrage, kicked Cave so hard he exploded. As Caroline died, Gabe decided to build a robot body for her, named GLaDOS after her mother Principal GLaDOS. For a while, Gabe and GLaDOS lived together, even after Assirram Strebor installed a virus into GLaDOS, making it evil.

About 13 years later, Gabe, now named Cave, had founded a shower curtain company Aperture Science, but didn't quite like it as he wanted to own the brand of Portal High School. As such, he and GLaDOS took over Portal High School and established Portal Labs. Gabe and GLaDOS also became the parents of two girls, Chell and Marrissa Roberts, via artificial insemination, but, due to a mishap, Ratman's DNA was sampled for Chell instead of Gabe's, making Ratman Chell's biological father.

Gabe died in AG 2041, after a mishap with one of his inventions, namely the three colors of paint. As such, first in ITS MY LIFE! he appears in Andord Hell. He immediately recognizes Chell and Marrissa as daughters, and becomes their friend.

Gabe's Andord Hell self is later killed by Marrissa, when she misuses her powers against GLaDOS. Chronologically, Gabe is not seen afterwards, but it is implied that he was resurrected by Wheatly's spell in the end of THE MARRISSA GAMES, as he appears, alive and well, in Marrissaverse Stories 2015.


  • The reference to Gabe Newell was not intended by Doombly; rather, he played Portal 2 without subtitles, as he finds them distracting, and actually thought Cave Johnson was named "Gabe" at first.


MarissaTheWriter story characters (v d e)
Based on real people
Real people Doombly - ASBusinessMagnet - Arrow-Awesome - Logic Editor - Skepkitty - Telltale Fanfic Theater 3000 - Prettydog200 - Korekara - Loveable Freak - CadenGallic - Library of the Damned
Fabricated people Sue Mary - MarissaTheWriter - Katty Smithereens - interdimensionalPortaller
Self-inserts Principal Business Lady - Business Man (IZ:BAC) - Skepkitty - Falmer trollz - Reel fans - Teen Ragers
Created by Doombly
ITS MY LIFE! (protagonists) Marrissa Roberts - Wheatly - Chell - Gabe Jonson - Caroline - TEEN FORTRESS 2 (Scot - Pyro - Ingineer) - Ratman
ITS MY LIFE! (villains) GLaDOS - Atlas and P-Body - Cave Jonson - CHELLGADOS - The Ultimate Zombee - Assirram Strebor
ITS MY LIFE! (supporting) Companon Coob - Space Core - Rick Core - Oracle Torrent - Gordon Freeman
TEEN FORTRESS 2 Wulf - Katty the Koala - Mr. Pursell - Mr. Sanpe - Principal GLaDOS - Loise Boombooms - Jenny Weasley - Gaz - Abraman Linkan - Redman and Bluman
Born Again Christian Gloria Deschanel - Zim - Gir - Dib - Simon Cowbell - Professor Membrane - Zooey Deschanel - Stephen Merchant - Nny - Skepness Man
THE MARRISSA GAMES (main) Pimprose Evergreen - Peeta Peeta Sandwich Eater - Gale Thunderpants - President Snow - Haymish Abernathy - Whip Whittaker - Gamemakers
THE MARRISSA GAMES (supporting) Kantiss Evergreen - Peacekeepers - Effie Trinket - Frank Fifteen - Agents J and K - Thomas the Tank Engine - Tributes (Roo - Sweary Guy) - Ceaser the Dog Whisperer - Sentinel Crane
Real Beauty Jane Burnham - The Once-ler - Kai Lai
THE KILL OF SNAPE Hermoany Stranger - Gobo Fraggle - Iggy and Huey - Robot and Roslalonde Lettuce - Bertha Boombooms - Flyhoof - The Canni-bull - Queen Elizabeth - Taylor Swift
THE FLAMES AWAKENS Riley Andorsen - Sans and Pappyras
Created by ASBusinessMagnet
Pre-Post-SCrash Session Emprase Contone Ovasere - Ross Lavigne - Avril Lavigne - Gerard Way - Mark Tequila - Kanner Sorket
Post-SCrash Session series (main) The Alpha Kids (Janet Roberts - Jack London - Roxa Lavigne - Dick Stiller) - Candacension Pixies - Meanie Pixies - The Time Police (Aranna Sorket - Cranky Vasquez - Joey Claire) - Lately Pirate
Post-SCrash Session (supporting) Janet's Robrodad - Dick Stiller's GPS Navigation - God Cat - Meanie Pixies' team - Cherub trollz (Cantaloupe - California)
Spectators of the Host (main) Skepness Man Beauregarde - Violet Beauregarde - Willy Wanker - Charlie Bucket - The fake Violet - Chell Junor Roberts
Spectators of the Host (supporting) Leprechauns - Loompa-Oompa servants - Mr. Lewis - Augustus Gloop - Veruca Salt - Mike Teavee - North Koreans - Violet Beauregarde, Jr. - Ms. Hart - Cecil - Carlos - SkyDoesMinecraft
Marrissaverse Stories 2015 The Comcasts - Loreta Alcorn - McJuggerNugget - Marrissa Picard - Albert Dumblydore
Hour of Fame Rebecca Sugar-Vasquez - Stephanie Universe - Alphas
Skepness Man's works Jared Halley - Wantagruel Vasebreaker - Jhonen Eggert-Vasquez - Kobito Minano
Created by others
Arrow-Awesome Fact Core - Ebony Dark'ness Dementia Raven Way
Prettydog200 Kitteh - Mary-Sue - JABBY JERRY BERRY