Pom-Pom is the conductor of the Astral Express. Their origins are unknown, and they appeared on the train at some point after Himeko repaired it. They are diligent and meticulous, making sure the Parlor Car is always clean and notifying all passengers when the Express is about to warp jump. Though they dislike being made fun of and can sometimes appear irritable, Pom-Pom cares deeply about every passenger. It is implied that they miss Akivili, along with other departed passengers.

A synthetic human vessel awakened by Kafka and Silver Wolf who has a Stellaron sealed inside her, then they are found by March 7th and Dan Heng on Herta Space Station during the Antimatter Legion's invasion before joining the crew after. Often calm, deadpan, and slightly eccentric with a well-known trait of unusual obsession with inspecting trash cans and being a raccoon gremlin. Tallest female on the Express. Messy silvery-gray hair, golden-yellow sleepy eyes, open dark trench coat with rolled sleeves and loose buckles, untucked white shirt, black high-waisted mini skirt, light blue thigh garter, dark footwear.

A amnesiac girl who was found sealed inside a block of Ice drifting through space, discovered and thawed by Himeko and Welt. With no memory of her past or true identity, she named herself after the date of her rescue and joined the Express to seek answers while creating new memories. Cheerful, energetic, and endlessly optimistic with a bubbly, slightly quirky personality. Loves photography and takes countless photos of everything to preserve her experiences, often inventing wild backstories for herself. A bit vain about her appearance and always ready for adventure. Messy shoulder-length light pink hair, pink-and-blue eyes, black choker with blue ribbon, white off-shoulder blouse, pink-and-blue overcoat, navy pleated skirt, and brown shoes with light-blue accents. Often carries a cyan camera.

A Vidyadhara who is the reincarnation of the former High Elder of the Xianzhou Luofu known as Imbibitor Lunae (Dan Feng). After being forced into a new life and exile due to his past incarnation’s sins, he wandered the cosmos until the Astral Express took him in as the train’s guard and archivist. Quiet, taciturn, and highly responsible. Speaks little about his past and prefers solitude in the Archives, yet is deeply loyal and protective of the crew. Calm under pressure, observant, and knowledgeable, with a soft protective streak toward March 7th and the Trailblazer. Tall and slender with short black hair, blue-green eyes, black turtleneck, white-and-green coat with gold accents and jade pauldron, dark bracer, grey pants, black high-tops, and a jade tassel earring.

A wise and experienced former Sovereign of Anti-Entropy from another world (Earth), who inherited the name “Welt” and has repeatedly saved his home planet from annihilation. After an incident involving a portal, he found himself stranded and was rescued by the Astral Express, later becoming a seasoned member of the crew. Calm, mature, and gentlemanly with a quiet strength. Acts as the crew “dad figure” thoughtful, protective, and rarely rattled. Enjoys sketching the journey in a notebook and has a soft spot for animation. Speaks with measured wisdom, though he can be surprisingly playful or dryly humorous when the mood lightens. Tall man with brown hair featuring a distinctive white streak, brown eyes, and glasses. Wears a grey-and-white dress coat with a dark scarf, black armor plating on the chest, dark brown pants, black shoes, and a black glove on his right hand. Always carries a cane (which doubles as a weapon).

A scientist who discovered the stranded Astral Express on Planarcadia as a young woman and spent years repairing it. Once the train was operational again, she became its navigator, inviting companions to join her on the Path of Trailblaze so she could witness the vast starry sky. Warm, elegant, mature, and quietly authoritative. Acts as a reliable “older sister / mother figure” to the younger crew members. Passionate about exploration, highly intelligent, and enjoys brewing strong hand-drip coffee (which most of the crew find too bitter). Calm and strategic in crisis, yet never loses her sense of wonder. Tall with long wavy red hair in a rose bun, golden eyes, white sleeveless toga dress with high slit, black coat draped off one shoulder with gold rose decorations, black choker, mini skirt, and black red-soled heels. Often carries a black briefcase.

A Halovian and former Oak Family Head on Penacony and one of the key organizers of the Charmony Festival. After his attempt to create an eternal dream paradise under the Path of Order failed and he was defeated by the Astral Express crew, he later joined them as a passenger seeking a new path and atonement. Composed, soft-spoken, and highly refined with an air of quiet intensity. Intelligent and meticulous, he often comes across as earnest and slightly stiff. Can be surprisingly dry or awkward in casual situations, and is still learning how to simply “trailblaze.” Shoulder-length silver hair, golden eyes with navy pupils, light wings behind the ears (left one pierced), golden halo, asymmetrical white-and-dark-blue tailcoat with gold ornaments, white scarf, black gloves, black pants, and tall dark boots.