Dingo is very direct and straightforward when addressing things, which at times, makes him seem uncaring and strict, but the ranger does have a soft side, the thoughts and comments of his other colleagues mattering to him. He is also noted to be quite meticulous by the Captain of the crew, Shepherd.

The Ranger of the Rescue Corps.

Yurima Akumu is a Kuroha (predecessor to Hocotatians) who travels different worlds to bring Darkness to them. Yurima was known as the King of Darkness due to his extreme power when he was still a king, but he eventually shafted the title, only to come back to the Crown years later. He is usually calm, but can change his disposition on a dime, his dark powers fueled by any sudden stroke of rage he has.

The King of the Dark World, returning.

'Raven' was a newly hired rookie for the Rescue Corps, before the crew she worked with were attacked, leaving her the only survivor out of 126  people onboard the SS Shepherd. She was from the planet of Karut, but now prefers to be with the United Federation, finding a way to use the past by using her skills to aid them whenever needed.

A Ex-Rescue Corps rookie and a formidable Magus.

Twila Nova is the Federation's 5th Vice Admiral, who is highly skilled in battle and strategic. At the end of the Federation's eternal Multiverse War against the Rebellion, her purpose of commanding a fleet was nearing its end, but it doesn't seem like either her or the Admiral are keen on stepping down yet.
When not commanding the Federation, she is often with her sister, Crystal.
Ironically, despite her high rank, she wasn't too fond of Admiral Tully, but she tolerated him enough in wartime.

The 5th Vice Admiral of the United Federation.

Lisa Kagan is a rookie who was enlisted into a rescue mission, she's quiet and calm, but also quite powerful. However, she never shows this power to anyone. She is also a lover of the occult and demonology, though she doesn't tell that to anyone, either.

A magic-using Rookie of the Rescue Corps.

Leah is... Obnoxious to anyone she comes across, calling them her "rival", and going out of her way to find someone who isn't a Rebel. She has a heavy habit of calling anyone in front of her a "beyatch", except for Rebels, because of course she wouldn't talk shit to her own.

The self-proclaimed Beam Master of the Rebellion.

Captain Shepherd is the Captain in Command of the Rescue Corps, and the 99th Shepherd in her family line.
However, she holds a secret past to herself, that being her former affiliation with the Dark Hearts long before she became the Captain of the Rescue Corps.
This raised several eyebrows, as the High Commander of the Dark Hearts has record of Shepherd's discharge from the group.

The Captain of the Rescue Corps.

Tully is the Admiral of the United Federation. He is one of the strongest members of the faction, not just by authority, but by physical strength and mental willpower being greater than most of his Federation soldiers. But that strength isn't from human willpower alone, nor is it from constant training off-duty, but it's said to be from supernatural forces from a peculiar book that even his worst enemies want... What it does for him is a complete unknown, however.

The Admiral of the United Federation. (FTL: MV)

A 16 year-old, short, blue-haired Koppaite who is curious about anything.
Alph built the S.S. Drake after his grandfather using his engineering prowess from his engineering classes.
When he's not out helping the S.S Drake's crew during the day, he's often tinkering with random things in his own personal workshop, or simply his quarters.
Alph never curses, unless he is angry enough.

A young Koppaite engineer obsessed with his work.

Collin works for the Rescue Corps originated in his home planet of Giya as a Communications Operator. He is quite handy in the engineering field, and often gets assigned to tasks involving the S.S. Shepherd.

A Rescue Corps Comms Operator and a double agent.

Admiral Oriana Lockheart is considered one of the only female Admirals known in space, but the faction they run, the Dark Hearts, wasn't brought into the sights of either the Federation or Rebellion until they took the credit for ending the multiversal part of the Federation Civil War, effectively breaking the cycle for both sides. The Federation was grateful for this action from this seemingly unknown hero, and the Rebellion was forever powerless to stop their fleet with Admiral Vance gone.

The Admiral of the Dark Hearts.

Admiral Vance is the leader of the Rebellion, a rather xenophobic faction with the ultimate goal of purging any non-human beings from the multiverse. His main opposition is the United Federation, who is made up of a mix of different alien races, all of which despises Vance as much as Vance despises them.

The Admiral of the Rebellion. (FTL: MV)

A protective Guardian of The Light. Twyla, like the rest of their kind, are peaceful, as opposed to many others in the Multiverse. Most have been known to fly small spaceships like other races, but these ships have little to no weaponry, so they stick close to their home world, the Kingdom of Sky. A vast world that's inhabited by these children and various ancestor spirits that once lived in the Kingdom eons ago, watched over by the six Elders of Sky.

A very protective, but still adorable Sky Kid.

Player Four has been on the run from the law for nearly 15 years, acting as both criminal and vigilante long enough that the moral lines have been blurred by all parties. By some, she is seen as a modern anti-hero. To others still, she's just as bad as she was when she transitioned to the dark side of the law at 18, having become worse with her awakening to the Darkness at 21, an old curse brought on by her ancestors four generations ago.

A respected criminal and vigilante.

A medic drafted to the Rescue Corps for the latest mission, and is responsible for curing stray castaways from being Leaflings, turning them back into their normal selves. Working with Lisa Kagan, she also helps the rookie with getting stronger. Whatever that means, no one else really knew. For the best.

The field medic of the Rescue Corps.

Alpha Ikari is a Vireli (a predecessor to Koppaites, who live in the same planet as them, Koppai) who gave up the Alpha (α) Team's Expedition work to be in a mercenary group called the "Dark Light Mercenaries", who work with the Dark Hearts. Despite his short temper, he makes sure everyone remains in line, but often takes harder jobs the DLM brings for both the pay and the thrill of the fight. Unlike Yurima, Alpha is easily provoked, which once gave him the nickname 'Prince of Rage'.

The Virelus Mercenary-Prince.

Tully Prime, despite this title, is NOT the first version of Admiral Tully. Tully's Prime form was forced into existence from the Chaos born from the Realm of Madness, making him one of the only known Primes in the multiverse not to originate from Universe 0. He seems to have this mirror image of what the real Admiral never wanted to become: a heartless ruler, a tyrant... Yet he hadn't been rid of him. Perhaps this dark side of Tully's has its uses? Not even we are certain of that justification.