This is for the people who aren't as obsessed with DC as me. If you do know basic DC stuff, just skip to the end for my OCs.

B01 Robin/Nightwing
Name: Richard John Grayson
Nickname: Dick
Species: Human
Age: 20
Appearance: Black hair, dark blue eyes, tall, muscular and toned body
Powers: None
Backstory: He grew up in Haley's Circus, where he was a trapeze artist with his parents, and they were known as the Flying Graysons. When the circus master, Haley, refused to sell the circus to the mobster Tony Zucco, he tampered with the trapeze equipment, resulting in John and Mary's death, and Dick being left an orphan. Bruce, who was there, saved the boy from the terrible conditions of social services, and adopted him. Dick soon discovered Bruce's identity as Batman, and became Robin, his mother's nickname for him. After a falling out with Bruce, Dick shed his Robin persona, and instead became a vigilante in the neighboring city Blüdhaven.
Occupation: Police officer/vigilante
Family: John and Mary Grayson (parents), Bruce Wayne (foster father), Jason Todd, Tim Drake, Cassandra Cain, Kate Kane, (foster siblings)

Relationships: (former) Zatanna, Raquelle/Rocket, Kori'aandr, Barbara, (current interest) Emma

B02 Aqualad
Name: Kaldur'ahnn
Nickname: Kaldur
Species: Atlantean
Age: 24
Appearance: Dark skinned, blonde hair, green eyes, tall, has gills
Powers: Water manipulation, electricity manipulation, poison resistance, dense skin, breathing underwater, can withstand very cold temperatures
Weakness: High heat and dehydration
Backstory: He was a student at the Atlantean school of sorcery, where, when Aquaman was defeated by Ocean Master, he and his best friend Garth fought Ocean Master long enough for Aquaman to recover. He was given a chance to become Aquaman's protegé, so he became Aqualad. After the death of his crush Tula (who was in a relationship with Garth), he found out that his father was Black Manta, another supervillian. He went on a deep cover mission into his father's alignment with The Light, a group of supervillians.
Occupation: Superhero
Family: Black Manta (father)
Relationships: (former interest) Tula, Raquelle/Rocket

B03 Kid Flash
Name: Wally West
Nickname: Wally, Wall-man
Species: Meta-human
Age: 24
Appearance: Red hair, green eyes, pale skin, freckles
Powers: Super speed, high metabolism, accelerated healing
Weakness: Gets hungry way too easily
Backstory: After finding out his uncle Barry was the flash, he found notes on the explosion and recreated the same environment in his garage, giving him powers and becoming Kid Flash. When the last chrysalis began to destroy the world, he, Impulse and Flash stopped it, but at the cost of Wally's life. (He's probably still alive but he has ceased to exist according to the Blue Beetle scarab)
Occupation: College student
Family: Barry and Iris West-Allen (uncle and aunt), Joan and Jay Garrick (honorary grandparents), Dawn and Don Allen (unborn cousin), Bart Allen (first cousin once removed)
Relationships: (dating, but broke up because he's dead)Artemis

B04 Superboy
Name: Conner Kent
Nickname: Conner, SB
Species: Half Kryptonian, half human
Age: 8/24
Appearance: Black hair, blue eyes (superman)
Powers: Super strength, super jumping/leaping, invulnerability 
Backstory: He is a genomorph, a clone created by Cadmus from the DNA of Lex Luthor and Superman. His retrieval and freedom is what first started the Team.
Occupation: College student
Family: Clark Kent and Lex Luthor(DNA father), Lois Lane (foster mother), Jon Kent (foster brother)
Relationships: (Former) Miss Martian, Cassie Vandsmark

B05 Miss Martian
Name: M'gann M'orzz, Megan Morse
Nickname: Megan
Species: White Martian
Age: 24/55
Appearance: (actual appearance: search it up it's weird to explain) green skin, amber eyes, red short hair
Powers: Telekinesis, telepathy, density shifting, invisibility
Weakness: Fire
Backstory: She is Martian Manhunter's niece, but grew up scorned by the majority Green Martians, so disguised herself as a green martian on Earth to avoid discrimination.
Occupation: College student
Family: J'onn J'onzz (uncle)
Relationships: (former) Superboy, Lagoon Boy

B06 Speedy/Red Arrow
Name: Roy Harper
Nickname: Roy
Species: Human/clone
Age: 10/25
Appearance: Red hair, blue eyes
Powers: None
Weakness: He was a sleeper agent for The Light, so when he hears the words 'Broken Arrow', he can be programmed to do things without his control.
Backstory: Read above
Occupation: Dad
Family: Jade 'Cheshire' Nguyen (wife), Lian Nguyen-Harper (daughter)
Relationships: (current) Jade Nguyen-Harper

B07 Artemis/Tigress
Name: Artemis Lian Nguyen
Nickname: Artie
Species: Human
Age: 24
Appearance: Blonde straight hair, dark grey eyes, tanned skin
Powers: None
Weakness: Insecure
Backstory: She was brought up an assassin by her father Sportsmaster, a con, since her entire family was in crime (her mother is an ex-con Huntress, but is now paralyzed, while her sister Jade was Cheshire.)
Occupation: College Student
Family: Lawrence Crock and Paula Nguyen (parents), Jade Nguyen (sister), Lian Nguyenn-Harper (niece)
Relationships: (former?)Wally West 

B08 Zatanna
Name: Zatanna Zatara
Nickname: Z
Species: Human
Age: 22
Appearance: Black wavy hair, blue eyes
Powers: She can make nearly anything happen by saying the words backwards using magic (Levitate would be Etativel)
Weakness: Her magic has to be spoken, so if she is gagged, she has no power
Backstory: Her father Giovanni Zatara sacrificed himself to be the host for Doctor Fate, so she joined the Team. She soon joined the Justice League when she reached 18
Occupation: Superhero
Family: Giovanni Zatara (father)
Relationships: (former) Dick Grayson

B09 Rocket
Name: Raquel Ervin
Nickname: Raquel
Species: Human
Age: 22
Appearance: African-American, black short hair, brown eyes
Powers: (from belt) Flight, force bubbles
Weakness: She has no superpowers without her belt
Backstory: She convinced Icon to be a superhero, and she became his sidekick. She soon joined the Justice League with Zatanna when she turned 18
Occupation: Superhero
Family: n/a
Relationships: (former) Dick Grayson

Heroes that aren't in this but deserve a special mention:
Tempest: Garth, Kaldur's best friend
Aquagirl: Tula, Garth's girlfriend and Kaldur's former love interest (dead)
Troia: Donna Troy, former Wonder Girl
Robin: Jason Todd, second Robin (dead)
Lieutenant Marvel, Sergeant Marvel

B16 Batgirl/Oracle
Name: Barbara Gordon
Nickname: Babs
Species: Human
Age: 22
Appearance: Red hair, blue eyes
Powers: None
Weakness: She is paralyzed waist down
Backstory: She is Dick's best friend, and became Batgirl soon after he became Robin. She was shot by the Joker in the spine, which resulted in her paralysis, but due to her photographic memory and genius level intellect, she became Oracle, an information broker and hacker that helped the Justice League and Bat Family in many occasions.
Occupation: Assistant professor/Vigilante
Family: Jim Gordon (father)
Relationships: (former) Dick Grayson

B17 Bumblebee
Name: Karen Beecher
Nickname: Karen
Species: Human
Age: 24
Appearance: African-American, black hair in two buns, brown eyes
Powers: (from suit) flight, size alteration, energy blasts
Weakness: Since her powers are from her suit, without it she is powerless
Backstory: She got her superhero name Bumblebee from her highschool cheer group the Bumblebees.
Occupation: College student
Family: n/a
Relationships: (current) Malcolm Duncan

B18 Lagoon Boy
Name: La'gann 
Nickname: Lagann
Species: Atlantean
Age: 23
Appearance: Erm, search this one up. I don't know how to describe him.
Powers: Can grow larger/expand giving him increased strength and durability, resistant to cold
Weakness: Fire/Dehydration
Backstory: He doesn't have much of one
Occupation: Student at the Atlantean School of Sorcery/Superhero
Family: n/a
Relationships: (former) Miss Martian

B19 Beast Boy
Name: Garfield Logan
Nickname: Gar
Species: Metahuman
Age: 15
Appearance: Green skin/hair/eyes, usually half monkey
Powers: Transform into any animal (but it'll be green)
Weakness: He can't go undercover as a human due to his green skin
Backstory: As an 8 year old, he lived in Bialya and was caught in an explosion as he saved the animals of the nature reserve he and his mother Marie Logan, Miss Martian's idol, worked at. To save Gar's life, Miss Martian performed a blood transfusion, and her martian blood mutated Gar to become Beast Boy
Occupation: High school student/Superhero
Family: Marie Logan (dead), Miss Martian (blood sister)
Relationships: n/a

B20 Robin/Red Robin
Name: Timothy Drake
Nickname: Tim, Rob
Species: Human
Age: 16
Appearance: Black hair, green eyes
Powers: None (but he has a genius level intellect)
Weakness: He is human
Backstory: His mother was killed by poison-laced water, while his father who drank the same water ended up in a coma. He was the only Robin that worked out the identities of the Bat Family before they joined it, all because of a quadruple somersault.
Occupation: High school student/Vigilante
Family: Janet and Jake Drake
Relationships: (former) Cassie Vandsmark, (current) Stephanie Brown

B21 Wonder Girl
Name: Cassandra Vandsmark
Nickname: Cassie
Species: Demigod
Age: 17
Appearance: Blonde hair, blue eyes, always with a hairband
Powers: Flight, super strength
Weakness: She's terrible at stealth
Backstory: Daughter of Zeus and an archaeologist, she was raised by her single mother, and soon became Wonder Woman, her older sister's, protegé.
Occupation: High school student/Superhero
Family: Diana Prince and Donna Troy (half sister), Zeus (father), Helena Vandsmark (mother)
Relationships: (former) Superboy, Tim Drake

B22 Blue Beetle 
Name: Jaime Reyes
Nickname: Blue
Species: Human
Age: 18
Appearance: Hispanic, black hair, brown eyes, tanned skin, 
Powers: (from the Blue Beetle scarab, and Artificial Intelligence) Flight, enhanced strength, construction, energy blasts, enhanced durability, projection, translation 
Weakness: Sometimes, the scarab controls him instead of the other way around, and if his scarab is rebooted, he will be put under the control of whoever controls the beetles
Backstory: When Kord Industries exploded as Jaime skated past, the scarab latched onto his back, fusing with his spine and granting him powers. He was under the control of the Reach (an alien race that was in partnership with the Light in taking over Earth) for a short period of time, before being freed by Zatanna
Occupation: High school student/Superhero
Family: n/a
Relationships: (current interest) Traci Thirteen

B23 Impulse/Kid Flash
Name: Bartholomew Allen
Nickname: Bart
Species: Meta human
Age: 15 (but he's from the future so technically he's -40)
Appearance: Brown hair, green eyes, short
Powers: Super speed, high metabolism, accelerated hearing
Weakness: He needs a lot of food
Backstory: He came back from the future to stop the Reach Invasion from taking over the world, but since his time-machine was a one way trip, he was stuck in the past and continued to help the team. When Wally 'dies', he becomes the new Kid Flash
Occupation: Superhero
Family: Don West-Allen (father), Dawn West-Allen (aunt), Barry and Iris West-Allen (grandparents), Jay and Joan Garrick (honorary great grandparents), Wally West (first cousin once removed)
Relationships: (current interest) Mia Dearden

B24 Guardian 
Name: Malcolm Duncan
Nickname: Mal
Species: Human
Age: 24
Appearance: African-American, tall, black hair, brown eyes
Powers: None
Weakness: He only has a suit
Backstory: He had a rivalry with Superboy when he first joined school as Conner Kent, but soon joined in with the Team, usually being the team manager back at the Cave. When Despero attacked, he donned Jim Olsen's old Guardian costume and became the new guardian
Occupation: College student/Superhero
Family: n/a
Relationships: (current) Karen Beecher

B25 Speedy/Arsenal 
Name: Roy Harper
Nickname: Roy
Species: Human
Age: 25
Appearance: Red hair buzz-cut, green eyes
Powers: None, but he has a mechanical arm
Weakness: Easily angered and makes rash decisions
Backstory: 10 years ago, he was placed on ice, and his arm was surgically removed for enough DNA to create a full clone of him, who replaced him and became Red Arrow. When he was saved from the cryogenic chamber by Red Arrow, he ran away from hospital, and confronted Lex Luthor, who gave him a cyborg arm instead of being killed.
Occupation: Vigilante
Family: n/a
Relationships: n/a

B26 Static 
Name: Virgil Hawkins
Nickname: Virgil
Species: Meta human
Age: 17
Appearance: African-american, black dreadlocks in a bandanna, brown eyes
Powers: Electromagnetism
Weakness: His powers are new
Backstory: He was abducted by the Reach thinking he was a runaway, and after experimentation, gained his new meta powers. After escaping the Reach ship, and escaping STAR Labs who tried to monitor him and the other runaway abductees, they saved the team from Black Beetle and joined the team after the chrysalis was deactivated.
Occupation: High school student
Family: Mother, sister, father
Relationships: n/a

And here's the ones that don't have an official page yet since Season 3 isn't out.
Spoiler: Stephanie Brown, daughter of the villain Cluemaster
Thirteen: Traci Thirteen, who is a magician who can control urban magic
Arrowette: Mia Dearden, Arrow's new sidekick
Robin: Damian Wayne, son of Batman and Talia al Ghul
Black Bat: Cassandra Cain, daughter of David Cain and Lady Shiva
Batwoman: Kate Kane

And nowwww OCs!

Eclipse
Name: Emma Hadley, Al Qamar (the moon)
Nickname: Em
Species: Meta human
Age: 20
Appearance: Wavy blonde hair, gray eyes, slightly eurasian
Powers: Basically green lantern but silver and without ring, invisibility
Weakness: She needs her hands for her abilities
Backstory: She was brought up in the League of Shadows as the perfect assassin and spy, and was sent to Keystone City at the age 7, where she befriended the older Wally West. When she went on a mission to Central City when she was 9, she was present for the particle accelerator explosion, and gained her powers. When she was 13, she moved to Gotham City to prepare to infiltrate and destroy the Justice League, and when she was accidentally exposed to the same fear toxin as Batgirl/Barbara, found out that Barbara was Batgirl and thought she had died, and became her own vigilante, Eclipse.
Occupation: Barista, shop assistant, waitress, Gotham Gazette comic writer, Vigilante
Family: n/a
Relationships: (current interest) Dick Grayson

Phoenix

Name: Pallas Earling/Ta er al-Fyniq (the Phoenix)
Nickname: Pallie
Species: Meta human
Age: 18
Appearance: Irish, red frizzy hair, blue eyes
Powers: Flight, pyrokinesis
Weakness: Water
Backstory: Similar to Emma, but she was deployed to El Paso, Texas, where she befriended Traci Thirteen and Blue Beetle. She was present on the same mission as Eclipse to Central City which gave her her powers.
Occupation: High school student
Family: n/a
Relationships: n/a

Hummingbird
Name: Hannah Foster/Ta er al-Sariea (the fast bird) 
Nickname: Hannah
Species: Meta human
Age: 22
Appearance: Eurasian, Spiky black hair, blue highlights, green eyes
Powers: Super speed, high metabolism, accelerated healing and senses
Weakness: Needs a lot of food
Backstory: Similar to the other two, but she was deployed to Happy Harbor, where she befriended Superboy, M'gann, Karen and Malcolm, as well as kept tabs on Mount Justice. She was present on the same mission as Eclipse to Central City which gave her her powers.
Occupation: College student, newspaper deliverer
Family: n/a
Relationships: (current) Lyra Wilson

Lupa
Name: Lyra Wilson/Al Dhyib (the wolf)
Nickname: Ly
Species: Meta human
Age: 22
Appearance: Albino, white hair, amber eyes, usually in the form of a half fox when on missions
Powers: Can turn into any animal (but albino)
Weakness: In her human form, her eye sight is weak
Backstory: Her story is similar to the others as well, but she is the secret daughter of Slade Wilson/Deathstroke, who gave her to Ra's as a gift. She was sent to California to observe the Teen Titans and her sister Ravager.She was present on the same mission as Eclipse to Central City which gave her her powers.
Occupation: College student, waitress
Family: Slade Wilson (father)
Relationships: (current) Hannah Foster

Sparrow
Name: Seraphina Renn/Al Asfur (the Sparrow)
Nickname: Sera
Species: Meta human
Age: 24
Appearance: Latino, brown short hair, brown eyes,
Powers: Manipulation of sound
Weakness: When using her power, she goes temporarily deaf so she can control the sounds but not hear them
Backstory: Similar to the others, but she was sent to Starling City.She was present on the same mission as Eclipse to Central City which gave her her powers.
Occupation: Musician
Family: n/a
Relationships: n/a