Infinity Train
The titular train, it's an interdimensional that pick people on "crossroads" on their lifes, the passengers need to get their number to 0 to exit the train.- Mechanical Abomination: Its an infinite interdimensional train that can change its appearance to lure passengers inside it, defies laws of physics and the "passengers" can't exit it until their get the number on their right palm to "0".
- Ominous Visual Glitch: When the Train is recorded through any device, its look like a walking glitch with green windows.
- Reality Warper: The train can appear indoors, outdoors, in a vent...
- Voluntary Shapeshifting: The Train can change its own appearance to lure a passenger inside.
One-One/One
The conductor of the Train, he returned relatively recently to his throne, so he have a lot of tasks to do.
- The Chooser of the One: Downplayed since he can't control if someone receive a Keyblade, he can only enable the choosing.
- Late-Arrival Spoiler: The description just gave it away that he's the true Conductor.
- Nice Guy: He want Passengers to solve their issues and go home.
- In-Series Nickname: Amelia call him "One", Justified since he was once called that when Amelia boarded the Train thirty years prior.
Denizens
Artificial entities made by the train to help passengers get their number to 0.Starflare
Starlow's father and ruler of the Star Valley Car.
- Expy: A kind ruler of Car who is also the father of the protagonist's Denizen Partner? Are we talking about Titus or Starflare?
- Reasonable Authority Figure: He don't encourage Stella to go againt the Neo Apex since the train is only about emotional growth.
Starmagma
An Denizen that the Neo Apex faced in the Star Valley Car.
- Better to Die than Be Killed: He self-destruct himself to make sure that his death don't raise the Neo Apex's numbers.
The Cat/Samantha
The owner of the Skill Training Car, she also have a partner named Frank.
- Adaptational Angst Upgrade: She is lamenting the fact that Simon is dead, even having a photo of him.
- Brutal Honesty: Played for Laughs. When she ordered to change the clothes, Stella ask if they are stinking, The Cat simply say "Yes".
- Foil: To Flip. Both of them sell seemingly useless on the train, but the items that she sell can still be useful and save passengers (E. G. Donut Holer) while Flip sell expired food, The Cat can still be nice yet rough, Flip is greedy and a scammer, The Cat is still alive while Flip is dead.
- Late-Arrival Spoiler: Her connections to Simon are brought up here.
Frank
A brown bear that is The Cat's Partner, he also wear sunglasses.
- Adaptational Skill: He know how to sew clothes in this fic whereas the only thing he could do on the show was supposedly make good pancakes.
- Cool Shades: Constantly wears these even when indoors.
Passengers
People who boarded the train after being on "crossroads", all of them have green numbers on their right hand.An human that Starflare mentioned who is also the co-creator of the Trans Chips with Tails.
- Gadgeteer Genius: He helped create the Trans-Chips.
- The Ghost: He is only mentioned by Starflare while talking about the Star Gauntlets.
Tulip Olsen
An passenger that Stella read about, she is responsible for One-One return to his role.
- Famed In-Story: She have a tale on the e-reader from the Train, meaning she is very well known.
- The Ghost: Mentioned in a tale read by Stella. Justified as she's already off the Train.
- Late-Arrival Spoiler: Tulip returning One-One to his place as conductor is casually mentioned in this Fic.
Amelia Hughes
The former conductor and assistant to One-One, she is currently quarantining Cars she created during her reign.
- Adaptational Wimp: Justified. She don't have her barrier belt since it hasn't been created by the time the story starts (Between Books 1 and 2).
- Early-Bird Cameo: She was indirectly mentioned when Stella was reading the Tale of Tulip, she then make a appearance on Chapter 10.
- Late-Arrival Spoiler: The fact that she was the False Conductor who hijacked the train is mentioned when she first appears in this story.
The Apex
The original group of Car Raiders, they are already dead by the time Stella read about them.
- Death by Adaptation: The Apex is still alive in canon (except Simon), but something killed them in this story, It's revealed that the Organization Infinitum executed them after they killed enough Denizens.
- Karmic Death: They killed denizens without remorse. They then get killed off by a nastier group of passengers.
- Killed Offscreen: By the time they were brought up, something outright killed them.
- Villainous Legacy: They still have a renmant called Neo Apex who still haven't changed their ways.
- You Have Outlived Your Usefulness: The main reason the Organization Infinitum killed them is because their killing of Denizens isn't necessary anymore.
Others
Heartless
Beings created when the Heart of a Passenger is corrupted by Darkness, leaving behind a Nobody, the only way to kill them is through the Keyblade.
- Adaptational Badass: The Heartless could still be kill without a Keyblade on Kingdom Hearts, but its outright stated that the only way to kill them is using a Keyblade as said by One-One.
- The Heartless: Duh.
- Would Hurt a Child: The first one that the Star Vouagers encounter didn't hesitate to attack them, the Trio being childrens of different ages (Stella is 11, Goh is 10 and Lucy is 8).