An American pilot and the love interest of Diana. On his role for the film, Pine said, "I am an American pilot who's a spy. It's like a boy's dream: You're either a spy or a fighter pilot. The first thing I wanted to be was a fighter pilot a long time ago. I wanted to be Goose [from Top Gun]". As to how his mortal character would interact with an Amazon, Pine stated, "When I first read the script, it had elements of Romancing the Stone, kind of a very classic fish out of water. Two people that don't really bond well at first and they're butting heads and just fun, witty banter". When speaking about meeting the director and being cast, Pine said, "Patty is a pretty incredible human being. When we first met about the part of Steve, she sat across from me and essentially acted out the entire film over the course of a two-hour lunch. She was so specific, so articulate, and so ardent. I would've said yes just for Patty alone." Pine went through a workout regimen for the film, commenting, "I got in incredible shape for this film" but also joking "I was also wearing about 75 pounds of clothing. What I realized is that I made a major mistake, I got in great shape and they just put clothes over all my hard work."
Although they do not appear in Justice League: War, the Olympian Gods are briefly mentioned by Wonder Woman during a conversation with Superman about the other five heroes, referencing Batman as Hades (who is just as dark and mysterious just as Maxie Zeus did in the "Fire From Olympus" episode of Batman: The Animated Series), Green Lantern as Apollo (the God of Light), Flash as Hermes (the Messenger of Olympus and God of Speed), Cyborg as Hephaestus (the Blacksmith of Olympus and God of Metal) and Shazam as Zeus (God of Lightning).
Membership Air Wave • Amazing Man • Atom Smasher • Batman • Black Adam • Captain Marvel • Citizen Steel • Cyclone • Damage • Darknight • Hawkgirl • Hippolyta • Huntress • Jakeem Thunder • Johnny Thunder • Judomaster • King Chimera • Liberty Belle • Lightning • Magog • Miss America • Mister America • Obsidian • Power Girl • Red Beetle • Red Tornado • Ri • Robin • Sand • Stargirl • Star-Spangled Kid • S.T.R.I.P.E. • Thunderbolt • Tomcat • Superman • Wonder Woman
Aquaman has also had run-ins with the Olympian sea deities. Poseidon had long relinquished the title of Sea King to Orin of Atlantis, but when Aquaman's subjects lost faith in him, Poseidon arranged a challenge with his son Triton. Aquaman bested Triton and the godling fell from grace with his father. In anger, Triton slayed Poseidon and claimed his power. Aquaman freed Poseidon by appealing to Lord Hades. When they returned from the dead, Poseidon slew his son in turn. Disgusted with mortal affairs, Poseidon bequeathed his trident to Aquaman. Aquaman somehow lost the Trident, though, as it was last seen with Queen Clea.