Meet the Full Companions Cast of The Expanse: Osiris Reborn, Out Spring 2027

Mar 26, 2026 at 10:30am EDT
Promotional artwork for 'The Expanse: Osiris Reborn' featuring a group of diverse characters, including a humanoid alien, with a space background.

[UPDATE] At the Xbox Partner Preview Showcase, Owlcat Games revealed that The Expanse: Osiris Reborn is targeting a launch window of Spring 2027 on PC, PlayStation 5, and Xbox Series S and X, with a day-one availability on the Game Pass subscription service.

However, customers who purchase the Collector's Edition or Miller's Pack on the official website will be able to check out a Closed Beta (available on all platforms) starting April 22. The closed beta will give players a feel for the game's combat, movement in the zero-g environment, and the life-or-death stakes of a remote space station.

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[ORIGINAL STORY] PC Gamer was able to exclusively reveal the full companions cast of Owlcat's upcoming action RPG, The Expanse: Osiris Reborn. There are seven in total, though the first one, J, is a bit of a wildcard in terms of appearance and gender: being an identical twin to the player character, they will be based on the player's choices during character creation.

As for the rest, we have three males and three females, each with a specific role both on the ship and in combat: medic, engineer, hacker, gunner, and so on.

J, Executive Officer - As the player character's identical twin, J's appearance and gender are based on your custom character's. Character-wise, they very much have a personality all their own, acting as your impulsive but loyal right hand.

Exploit: Precision

Teo, Doctor - A loud and boisterous combat medic who lost his medical license back on Earth and jokes that he was kicked out before he ever got to take the oath. In combat, his tough armour and experimental stimulants make him a surprisingly aggressive threat.

Exploit: Malfunction

Michael, Gunner - After growing disillusioned with the UN military and then private security too, this beefy soldier chose the mercenary life. He's principled, and troubled by past tragedy… though not so much of either that he won't happily charge into the thick of things with a shield and a shoulder-mounted autocannon.

Exploit: Demolition

Zafar, Mechanical Engineer - Calm and collected, Zafar chooses his words carefully and can be surprisingly poetic when he does speak. In battle, he puts pressure on the enemy with deployable turrets and EMF devices that short out enemy equipment, leaving them vulnerable to attack.

Exploit: Malfunction

Regina, Liason Officer - The team's sniper, scout, and expert infiltrator, Regina's guarded personality makes it tricky to piece together her true past and agenda, but it's clear she sees the player character as a valuable ally on her mysterious quest.

Exploit: Precision

Aleesha, Electronic Warfare Specialist - Every sci-fi crew needs a snarky hacker, right? Having abandoned corporate life to become a free agent, Aleesha seeks out complicated problems and unsolvable enigmas to push her brain to its limits while deploying drones and subverting enemy systems in battle.

Exploit: Cyber-attack

Polly, Shipgirl - This youthful, optimistic, chatty Belter yearns to prove herself and achieve something truly great. In a fight, she provides combat support: armoured enough to take a hit, but mobile enough with her submachine gun to lay down a steady stream of mid-range covering fire.

Exploit: Demolition

As Owlcat told me in the first and second exclusive interviews we published on The Expanse: Osiris Reborn, in the best tradition of their own games (as well as the game's obvious inspiration, Mass Effect), companions will be "front and center" to the whole experience, and they'll also feature their own stories and side missions to deal with. Furthermore, while you'll only be able to take two of them with you on foot, the others will still be able to help from the ship in some capacity, which is Owlcat's way of trying to include the whole group instead of leaving them idle.

The Expanse: Osiris Reborn doesn't have a release date yet. It will launch on PC, PlayStation 5, and Xbox Series S and X.

About the author: With over two decades of experience in gaming journalism, Alessio Palumbo has led the gaming vertical at Wccftech since August 2015. He started working at a young age for Italian websites like Everyeye.it, Gamestar.it, Nextgame.it, and Multiplayer.it before kickstarting the indie English-language publication Worlds Factory as its founder and Editor in Chief. In the last decade, he has coordinated the overall output of Wccftech's gaming section, managed PR relations, assigned reviews, produced daily news coverage, edited gaming content as needed, and delivered game reviews. Arguably, his trademark content is the long series of exclusive developer interviews that have been cited by Wikipedia and by the biggest news media and gaming publications. His passion for technology also makes him knowledgeable when it comes to gaming hardware and tech. His favorite genres include RPGs, MMORPGs, and action/adventure games.

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