A sentient glowing one ghoul, Jason leads a band of religious Brotherhood ghouls that want a better life away from the wasteland and bigoted humans. He hopes to use the rockets at REPCONN to fly on a Great Journey to a "sacred place" named the Far Beyond by the Bright Brotherhood, where they will live in peace. That is until they are attacked by Invisible "Demons". The "Demons" (nightkin) attacked the Brotherhood without warning and killed many of them. They were forced to move to the upper levels of the REPCONN test site. After this, Jason tells you that the "Demons" shouted threats at the ghouls and said that they'd kill any ghoul that came down to the basement, but if they stayed where they were, the "Demons" said that they would let them live in peace. When asked about it, he will imply that you were sent by the Bright Brotherhood deity to help them, and then he asks you to rid the "Demons" from the basement of the REPCONN test site. If you accept, this will start the Come Fly With Me quest. If he dies, the player will fail the quest.
Strangely, Jason's voice is rather different from the other ghouls. Most ghouls speak in a deep, gravelly voice, which is likely caused by damage to the vocal chords, while Jason speaks in an electronically resonating tone. It is not gravelly in any way and the only thing that makes it different from a human voice is an artificial echo.
Unlike other glowing ones, you will not receive radiation from being near Jason.
Unlike normal glowing ones, Jason's skin is still relatively intact despite his condition. Only parts of him (such as his right shoulder and the left side of his skull), are bio-luminescent.
If you set the rockets to crash, Jason Bright will be the only survivor, since he was on the middle rocket.
He is trying to fix his rocket and he may not know the others were destroyed.
Jason is very similar to the "Sun of Atom" from Fallout 3, as both are glowing ones that serve as the living symbol of a religion. Even when you first meet him, beams of light crack through the ceiling and make him look even more like a religious figure.
His suit is unique, and cannot be obtained by reverse pick-pocketing, or on death.
If you comment on his name, he'll say that it was his name even before the war and takes it as a proof of destiny.
If you kill him when in stealth mode, the Bright followers will still attack you even if the attack was silenced. Also, they will say some different sentences, like "Jason was our leader!"
If Jason witnesses you killing a feral ghoul, he will become hostile. This will also happen with all the other members of his 'flock'.