International Ultramarine Corps

Warmaker One is Lieutenant Colonel Scott Sawyer who has a body composed of a type of energy which phases out of normal reality, and as such is contained in a high-tech suit of power armor. His armor is equipped with rockets, a one-shot bullet with a "clean" nuclear warhead, and transmitters that "broadcast" sounds and other sensory information, enabling him to overload Superman's super-senses.

Flow is Major Dan Stone, a creature of living water. As time wore on, Flow became more monstrous and less humanoid in appearance and changed his name to Glob.

4-D is an African American woman Captain Lea Corben. She has the power to change her dimensions, so that she could become four-, three-, two-, or one-dimensional at will, making her hard to capture and confine. In her own words, she also stated that she had the ability to draw power "from other dimensions and bring it into the Third Dimension" and use it to supercharge the blows she could deal out; she promptly then proved this in battle by knocking out Wonder Woman with a single blow.

Pulse 8 is Captain John Wether. Pulse 8 was originally in control of the fundamental forces of the universe, such as gravity, electromagnetism and the like. His more recent appearance, as The Master, shows him using his powers to rewrite reality using something called a "Quantum Keyboard". It is unknown whether this is a further development of his pre-existing powers, a whole new power, or merely a new way of describing his old powers.

The Knight is Cyril Sheldrake, an English costumed hero who takes after his inspiration Batman. Cyril is the second Knight, and served under the original Knight (his father, the Earl of Wordenshire) as his Squire. Cyril has a rather coarse attitude, and engages in friendly but politically incorrect banter with the Irish Jack O'Lantern.

Squire is Beryl Hutchinson, a superheroine similar to that of Batman's sidekick Robin. Beryl is an expert in communications and communication technology, to the extent that she can even read information patterns by touch. She is brave and strong-willed, and cares deeply for Cyril.

Goraiko is a large, superhumanly strong, superhumanly dense Japanese superhero apparently made out of the psychic energy of a young Japanese girl who resides in some sort of sensory deprivation casket. Goraiko speaks only in haiku and mathematical equations. The girl has a little doll in the casket that appears to be the inspiration for Goraiko's shape, but it is unknown if it is necessary for the manifestation of the being. Goraiko is a founding member of the Japanese equivalent of the JLA, a team called Big Science Action.[4]

Jack O'Lantern is Liam McHugh, an Irish patriot who derives some measure of mystical ability from an enchanted jack o'lantern. He is also extraordinarily agile and, although the Knight makes fun of his slim build, stronger than he looks.

Vixen is Mari Jiwe McCabe, an African supermodel and veteran heroine who has been part of many teams, including the Justice League and the Suicide Squad. She later left the Corps and rejoined the JLA.

Olympian is Aristides Demetrios, the national hero of Greece. He apparently wears the mythical Golden Fleece, which contains the souls and abilities of many Greek heroes, and as a result, he is able to use many of those abilities, such as the strength of Heracles. There is one drawback; the presence of so many minds within his own often confuses him, making him seem as if he has a split personality. During his most recent appearance, he was described as the "disgraced 'schizophrenic Superman' of Greece", implying that this personality disorder had led to some sort of public embarrassment.

Kid Impala is the teenaged successor to M'Bulaze the original South African Zulu hero known as Impala.

Tasmanian Devil is Hugh Dawkins, the veteran metahuman protector of Australia, and a renowned hero with the ability to turn into a supernaturally large and intelligent lycanthropic Tasmanian devil/human hybrid, a "were-devil". After leaving the Corps and rejoining the Global Guardians, he was killed by the villain Prometheus, but was later resurrected.

Ulla Paske of Denmark: A teenage hero born from a Danish lighthouse keeper and an Atlantean woman.

A crimefighting hero from France. Her secret identity is Noelle Avril.

Their appearances have been collected in a number of trade paperbacks, all written by Grant Morrison:

• DC One Million (with Val Semeiks, DC, 4-issue mini-series, 1998, tpb, 2004 ISBN 1-4012-0320-5)
• JLA: Justice for All (with Howard Porter & John Dell, tpb collects JLA #24–33, 1999, ISBN 1-56389-511-0)
• JLA: Ultramarine Corps (with Ed McGuiness & Dexter Vines, tpb collects JLA Classified #1–3, DC, 3-issue story arc, 2004, 144 pages, October 2007, ISBN 1-4012-1564-5)[5]