The Outer Senshi Defence Force, or OSDF, was the brainchild of Wendy Chronos, with the intent to represent the "missing Senshi", the Outers. It was the first (and for a very long time, the only) multi-Senshi faction in the Wars!. Because of the variety of its members, OSDFers come from all walks.

Outer Senshi Defence Force (OSDF)

• SuperSteve: First President of OtakuWorld, Steve's name is without a doubt one of the most well-known among the current Otaku Senshi. Not only does he hold the reknowned Big-Ass Key, but he's also been around since the 22nd post of the Wars!, being the thirteenth Otaku to enter the fray. Although he helped Jeddite steal the Lina Inverse BOB, the OSDF flagship, his main method of transport is the SuperSubaru. Steve's choice of attire is jeans and customized Tiny Toons or Setsuna t-shirts, and his soft-drink of choice is Jolt cola.
• Ursao Kumamachi (Sailor Ursa): possessed of an incredible amount of endurance, Ursa has seen the death of her beloved, Abacus, and survived everything that followed. Though she is quite hyper and perhaps too emotional, she really has "a steely core of genuine grade-A Watsuki kickass." She's currently wandering OtakuWorld, trying to collect tokens of approval from the leader of every faction to resurrect Abacus.
• Rubious: Rubious has a very volatile temper which, fortunately, is still quite difficult to truly set off. This control is aided by his Luna plushie, which allows him to become a calmer version of himself. His weapon of choice is an embalmo-gun, though he is quite able to use whatever means are available to him at the time. Rubious is usually found wearing an "OSDF 4 LIFE" t-shirt, blue jeans, black boots, and sunglasses.
• Nyagchilios: the first of a "new generation" of OSDFers (actually, the first to join up after the end of the Dark Moon League arc), "Nyakun" arrived in the middle of Steve's bid for presidency. He helped design the Nepuchuun Kokoro, the OSDF's other starship. He is usually serious (in a good-natured sort of way), and fairly logical. His loyalty to his faction and his companions is, of course, unswervable. His choice of weapon is the Kaijoushinken (Sea Goddess Sword) and the Crescens Armor, as well as some magic skills.
• Castle Spirits: the OSDF Castle Spirits are guardians of the Castle. They have been mind- bonded to four OSDFers to increase their mobility (normally, they are refined to the Castle). Wynd, the leader and Setsuna follower, has a somewhat maternal personality and is bonded to Sailor Zeo. Ci, the Neptunian spirit, has a personality not unlike Nyakun's, but more reasonable. Urth, the Uranian spirit, is bonded to Ursa and mainly embodies Haruka's fighting spirit. Ironically, Di, the Saturnian spirit bonded to Wendy Chronos, has had her personality explored the least and thus is the most mysterious of the Guardians.
• Zavek: a Hotaruchanian that came in before Riss disappeared. Fairly good-natured, he is tall with black hair, blue eyes, jeans, and a Hotaru/Saturn t-shirt. After henshin (which uses his cellular phone and "Mega-Glaive ONLINE!") he can use the Mega Glaive and its main power: WHACK Ribbon Revolution, which can render a Named Otaku unconscious for a short period of time or destroy several NO. His Brief Case o' Doom holds his computer and other tools.
• Katie: Katie is a Michiruchanian who has been brainwashed into the Yaten way of life but still hangs around the OSDF (unlike a certain other ex-Outer worshipper -_^ ). Her incredibly variable personality encompasses just about all ranges of behavior. Her powers include mild extrasensory perception and a foam baseball bat (she would never dare hurt any living thing, possible exceptions being extremely baka OSDFers and hentai). Five-eight with blue eyes and shoulder-length brown hair, she normally wears "black" (which occasionally means navy) pants and a Sailormoon or purple t-shirt. Her beverage of choice is Diet Pepsi. Oh, and she and Reg are an item.
• Regulus: a fairly calm, even-tempered Hotaruchanian who goes completely bitchcakes when what he loves is threatened. His powers include control over ice, mild telepathy, hovering, and Gravity Bombs, while his armory includes the Ice Glaive, the Gravity Glaive, and the Masamune blade that is normally handled by Sephiroth. Regulus has light blue eyes, and long, silver hair that's tied in a Starlight-style ponytail that reaches down to his mid-back. His entire wardrobe - shoes, pants, shirt, gloves, and trenchcoat - is black.
• Tom de la Mechanix: a technological wizard who can do many things with mechanical devices, given the right tools. About six feet, red hair, black leather jacket, combat boots, fingerless gloves, and blue jeans. Addicted to caffeine. Generally easygoing; do not piss him off or mess with his wheels, whichever incarnation of 'Vette it currently is. Harukachanian.
• Sailor Polaris: the newest addition to the OSDF, who arrived with the return of SuperSteve. In the past, she has been a member of the Darkmoon and a Reichanian. She hates incompetence, and while she also hates being called Esmeraude or Emerald, her laugh is exactly like Esmeraude of the Blackmoon's. She also hates chibi-type stuff. Her powers include use of the Illusory Staff to create short-term illusions, a projectile Polaris Energy Shock, Aurora Blast, and Starlight Supernova Blast. Her fuku is purple, with black highlights and gold trim.

The Castle: the OSDF Castle is a large, Gothic-architecture castle situated in the midst of a mountain range. One of the first things that strikes visitors is its perpetual draft. The second would probably be its inhabitation by benevolent OSDF spirits. The Castle also boasts a beautiful indoor pool, and rooms for every member of the OSDF at any given time.

The Lina Inverse BOB: the LI-BOB was formerly Nightman's Freya, until it was stolen by SuperSteve and Jeddite. It looks just like the Freya from (???), and is the OSDF flagship. Named (presumably) for Lina Inverse of the Slayers.

The Kokoro Nepuchuun: co-designed by Nyagchilios. Incorporates advanced Terrianic technology.

The SuperSubaru: a red Subaru owned by Steve. Gets incredible gas mileage.