Katana (DCEU)
Real name: Tatsu Yamashiro
Full name: Tatsu Yamashiro
Aliases: Katana, Sword Lady, Ninja
Alter egos: Katana
Creator: DC Comics
Alignment: Good
First appearance: Suicide Squad
Place of birth: Tokyo, Japan
Occupation: Vigilante
Teams: Suicide Squad
Relatives: Maseo Yamashiro (husband, deceased), Yuki Yamashiro (daughter, deceased), Reiko Yamashiro (daughter, deceased)
Gender: Female
Race: Human
Height: 5'5 • 165 cm
Weight: 110 lb • 50 kg
Eye color: Black
Hair color: Black
Superpowers: Agility, Dexterity, Endurance, Marksmanship, Reflexes, Stamina, Stealth, Weapon-based Powers, Weapons Master
Stats: intelligence 70, strength 10, speed 50, durability 40, power 55, combat 100

History:
Tatsu Yamashiro is a Japanese samurai assassin code-named Katana (after her weapon of choice). Tatsu is an infamous master of swordplay and martial arts, trained to the highest level in the ancient art form. She is a proxy member of the Suicide Squad, and, of note, the only voluntary member as Rick Flag's personal bodyguard.

Powers:
 Katana, as a highly skilled and experienced samurai and assassin, is in top physical condition though not even near to Batman's level.  Katana is exceptionally durable, swiftly recovering after being sent flying back by a superhumanly strong blow from Incubus.  Katana, as a samurai, is an extremely skilled martial artist and hand-to-hand combatant, volunteering as the personal bodyguard of Rick Flag on the Suicide Squad. Flag even advises the other Squad members not to killed by her, thus implying that Katana is the most skilled combatant of the Squad. Hence, she swiftly overpowers the group of Yakuza that murdered her husband, instantly pins an escaping Captain Boomerang against a wall, and was the one Squad member to hold her own the best against the extremely skilled Enchantress in the final physical battle with her, though Katana was eventually defeated as well. It should be noted, however, that Enchantress' victory in this instance is primarily due to her not only being equivalently skilled to Katana, but also having superior strength and durability, as well as a penchant for teleporting around the battlefield every so often (usually to avoid Katana's incapacitating strikes and blade slashes).  Katana, as a samurai, is an extremely skilled and lethally formidable swordswoman (normally wielding a Japanese samurai katana, hence her code-name). She is thus one of the most formidable members of Suicide Squad, on par with Deadshot and El Diablo, to whom Amanda Waller refers to as some of the most dangerous humans on Earth. Rick Flag even goes so far as to say that Katana could "cut all of [the other Suicide Squad members] in half with 1 sword stroke, just like mowing the lawn," and he therefore advises them not to get killed by her, implying that Katana's swordsmanship makes her the most skilled combatant on the Squad. Hence, she swiftly and easily killed the Yakuza group that murdered her husband and (before El Diablo steps in, in his flaming avatar form) she was the only Squad member who managed to wound Incubus, slicing off his right arm with her sword. Katana's swordsmanship, coupled with her immense combat skills, also made her the one Squad member to hold her own the best against the extremely skilled Enchantress in the final physical battle with her, though Katana was eventually defeated as well. It should be noted, however, that Enchantress' victory in this instance is primarily due to her not only being equivalently skilled to Katana, but also having superior strength and durability, as well as a penchant for teleporting around the battlefield every so often (usually to avoid Katana's incapacitating blade slashes).  Katana is quite skilled in acrobatics, easily dodging a hurled boomerang from Captain Boomerang.  Katana can fluently speak both her native Japanese and English, even lacking a foreign accent in the latter.