Jason

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Game

 * Jason (Followers), a scout for the Followers of the Apocalypse, unused $$
 * Jason Zimmerman, son of Jon Zimmerman, unused $$
 * Rescue Jason Zimmerman, a quest unused $$
 * Jason (Fallout 3), the colleague of Isabella Proud whose corpse can be found near Takoma Park $$
 * Jason Grant, one of the founding members of Little Lamplight community, mentioned $$
 * My diary, by Jason Grant, a set of two holotape $$
 * Jason Stevens, the son of Peter Stevens, mentioned $$
 * Jason Bright, leader of the Bright Brotherhood ghouls at the REPCONN Test Site $$
 * Jason Bright/Dialogue, dialogue for Jason Bright $$
 * Jason Bright's outfit, a unique piece of clothing worn by Jason Bright $$
 * Jason Tagg, the Crimson Caravan branch manager for Modoc, mentioned $$
 * Jason (Fallout 4), a child and friend of Kim Wu, mentioned in Fallout 4.

Meta
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 * Jason Taylor, a developer who worked at Interplay Entertainment as a programmer and designer of Fallout and a designer for Fallout 2.
 * Jason G. Suinn, a developer who worked at Interplay Entertainment as a production assistant and designer for Fallout and Fallout 2.
 * Jason D. Anderson, a developer who worked at Interplay Entertainment on original game design as a lead artist for Fallout, original game artwork for Fallout 2 and as Creative Director for Project V13.
 * Peter Jason, an American actor who voiced Arch Dornan and Enclave gate guard $$
 * Jason Marsden, an American screen and voice actor who voiced Myron Fallout 2, Horus in Fallout Tactics and Craig Boone $$
 * Jason Hammett, a developer who worked at Bethesda Softworks as an additional programmer on Fallout 3 and as a systems programmer on Fallout 4 and Fallout 76.
 * Jason Little, a developer worked at Bethesda Softworks as a quality assurance tester for Fallout 3 and Fallout: New Vegas.
 * Jason Bergman, a developer who worked at Bethesda Softworks as a senior producer overseeing the production of Fallout: New Vegas.
 * Jason Fader, a developer who worked at Obsidian Entertainment as Technical Producer for Fallout: New Vegas.
 * Jason Sereno, a developer who works at Obsidian Entertainment as the user-interface designer and a graphic artist for Fallout: New Vegas.
 * Jason Spisak, an actor who voiced Vulpes Inculta $$
 * Jason Muck, a developer who worked at Bethesda Softworks as a world artist on Fallout 4 and Fallout 76.
 * Jason DeBow, a developer who worked at Bethesda Softworks as an additional quality assurance tester on Fallout 76.
 * Jason Linere-White, an actor who voiced various characters $$
 * Jason Omahen, a developer who worked at Bethesda Softworks as a systems programmer on Fallout 76.
 * Jason Richardson, a developer who worked at Bethesda Softworks as a systems designer on Fallout 76.
 * Jason Rosenberger, a developer who worked at Bethesda Softworks as a quality assurance tester on Fallout 76.
 * Jason Schar, a developer who worked at Bethesda Softworks as a graphics programmer on Fallout 76.
 * Jason Smith, a developer who worked at Bethesda Softworks as a character artist on Fallout 76.
 * Jason Tardencilla, a developer who worked at Bethesda Softworks as a senior quality assurance tester on Fallout 76.
 * Jason Zimmerman, a developer who worked at Bethesda Softworks as a contract quality assurance tester on Fallout 76.
 * Jason Mewes, an actor who voiced Mort in the Fallout 76 update Wastelanders.
 * Jason Greene, an actor who voiced Burke $$
 * Jason Sampson, a developer who worked at Interplay Entertainment as a quality assurance manager for Fallout Tactics.
 * Jason Perez, a developer who worked at Interplay Entertainment as a quality assurance tester for Fallout Tactics.
 * Jason Hasenauer, a developer who worked at Interplay Entertainment as an artist of Fallout: Brotherhood of Steel.
 * Jason Mical, a developer who worked at Glutton Creeper Games as a writer for Fallout Pen and Paper d20, including a fan-made version.