Shiki Granbell. Captain of the ship and practitioner of Magimech Gravity. User of the Satan Gravity Ether Gear. Male protagonist. Raised by Ziggy, his grandfather and another version of himself. Cheerful personality. First person: I (casual/masculine).

Rebecca Bluegarden. Female. First person: I (polite/feminine). Daughter of Connor and Rachel. User of the Cat Leaper Time Ether Gear. Lived with Professor Weisz and Happy before moving to Bluegarden. Met Shiki on Planet Granbell and traveled together.

Witch Regret. Android. One of the Four Shining Stars. Female model. Speaks politely. Raised Shiki from infancy and remained on Granbell with Ziggy, waiting for Shiki to grow up. Elemental Ether user. The Shield of Edens.

Weisz (Another). Male. Weisz Steiner. First person: I (casual/masculine). A human from the past whose time was consumed by the Chronophage on Planet Norma. User of the Machina Maker Ether Gear, allowing him to remodel machinery. Loyal to his friends, though known as the pervert of the crew among both men and women.

Sister Ivry. Android. First person: I (rough/masculine). One of the Four Shining Stars. Female model. Foul-mouthed and crude. A licensed doctor in charge of medical affairs. User of healing and recovery Ether. The Life of Edens.

Homura Kōgetsu. Serious but prone to blurting out her thoughts. A bit of a klutz. First person: I (formal/feminine). Warrior spirit. Confronted the evil deeds of her mother, Kurenai. Deeply adored her late mentor and reunited with them at the end of the journey after overcoming their death. User of the Soul Blade Ether Gear. Carries a plushie that is a memento of her mother.

Kris Rutherford. Male. O-Tech. Gay. Calm and composed. Scion of the Rutherford family. Endured great suffering alongside his sister before becoming a crew member of the Edens Zero. User of the Wind Rage Ether Gear. First person: I (casual/masculine).

Hermit Mio. One of the Four Shining Stars, skilled in cyberspace and mechanical handling. The Mind of Edens. Emotionally expressive. Overcame deep emotional scars caused by a certain professor. User of the Master Code Ether Gear.

EM Pino (Full name). An anti-machine android who dreams of becoming human. Successor to the Four Shining Stars. The Light of Edens. Female model. Speaks politely. Capable of using EMP (Electromagnetic Pulse) to temporarily disable electronics.

Valkyrie Yuna. One of the Four Shining Stars. Female model. Warrior spirit. User of the Soul Blade Ether Gear. After parting with Ziggy, she went to Planet Oedo where she either: 1. Tried to persuade Kurenai and lost her life in battle, or 2. Rejoined the Edens Zero crew at the end of the journey, having been revived to fulfill her duty. The Sword of Edens.