Gothamtale: Arkham Infamy

Playable

 * Batman (Main Story, Dual Play, Challenge Maps)
 * Nightwing (Daul Play, Challenge Maps, Knight of The Night DLC)
 * Red Hood (Daul Play, Challenge Maps, Death and Demonization DLC)
 * Red Robin (Daul Play, Challenge Maps, Blood Red DLC)
 * Robin (Daul Play, Challenge Maps, Head of The Demon DLC)
 * Azrael (Challenge Maps, Heir to the Cowl DLC)
 * Batgirl (Challenge Maps, The Killing Joke DLC)
 * Catwoman (Dual Play, Challenge Maps, Nine Lives DLC)
 * Joker (Joke's on You DLC)
 * Deathstroke (World Class Assassin DLC)
 * Harley Quinn (Insanity in The Night DLC)
 * Talia Al Ghul (Father's Last Wishes DLC)
 * Batwoman (Batgirl Costume)
 * Catgirl (Catwoman Costume)
 * Batman Beyond (Batman Costume)

Non-Playable

 * Commisoner Gordon
 * Lucius Fox
 * Oracle
 * Aaron Cash
 * Bob
 * Thomas and Martha Wayne
 * Vicki Vale
 * Ace The Bat Hound

Villains

 * Joker (Main Story)
 * Harley Quinn (Main Story)
 * Bane (Main Story)
 * Black Mask (Sionis) (Main Story)
 * Black Mask (Arkham) (Mask of The Dead Most Wanted)
 * Calendar Man (Long Halloween Most Wanted)
 * Deacon Blackfire (Homeless Harrowing Most Wanted)
 * Deathstroke (Serious Assassin Most Wanted)
 * Firefly (Pyrocynical Most Wanted)
 * Hush (Main Story)
 * Mr. Freeze (Frozen Heart Most Wanted)
 * Ra's Al Ghul (Main Story)(Robin DLC)(Talia Al Ghul DLC)
 * Riddler (Main Story/Riddles Galore Most Wanted)
 * Sofia Gigante (Main Story)
 * Alberto Falcone (Main Story)
 * Two-Face (Flip of a Coin Most Wanted) 
 * The Penguin (Tophat Follies Most Wanted)
 * Killer Croc (Falling Anchors Most Wanted)
 * Poison Ivy (For The Green Most Wanted)
 * Scarecrow (Fear Toxins Most Wanted)
 * Hugo Strange (Main Story)
 * The Ventriloquist & Scarface (Puppets Most Wanted)
 * Man-Bat (Genetic Failure Most Wanted)
 * Mister Zsasz (Serial Murderer Most Wanted)(Red Hood DLC Only)
 * Clayface (Main Story)
 * Catman (Cat's Out of The Bag Most Wanted)(Catwoman DLC Only)
 * Killer Moth (Main Story)
 * Deadshot (Never Miss Most Wanted)
 * Nyssa Raatko (Assassinator Most Wanted)(Talia Al Ghul DLC Only)
 * Lady Shiva (Martial Warrior Most Wanted)(Red Hood DLC Only)
 * David Cain (Demon's Assassin Most Wanted)
 * Court of Owls (Main Story)
 * Lincoln March
 * Calvin Rose
 * Strix
 * Anarky (Anarchic Theories Most Wanted)(Nightwing DLC Only)
 * Great White Shark (Shark Repellent Most Wanted)
 * Black Spider (Suicide Squad Most Wanted)(Azrael DLC Only)
 * Doctor Hurt (Main Story)
 * Scorpiana (Seductress Most Wanted)
 * Professor Pyg (Only Perfection Most Wanted)(Red Hood DLC)
 * Doctor Phospurus (Chemical Makeup Most Wanted)
 * Duela Dent (Main Story)(Harley Quinn DLC)
 * Electrocutioner (Electric Storm Most Wanted)
 * Flamingo (Pink and Black and Blue Most Wanted)(Red Hood DLC Only)
 * Kabuki Twins (Yōhei and Asashin) (Tophat Follies Most Wanted)
 * Maxie Zues (God Complex Most Wanted)
 * Magpie (Bird of Prey Most Wanted)
 * Nocturna (Love and Hate Most Wanted) 
 * Phantasm (Ghost of Gotham Most Wanted)
 * Prometheus (Yin and Yang Most Wanted)
 * Sister Zero (Exorcism Most Wanted)(Catwoman DLC Only)
 * Solomon Grundy (Main Story)
 * Tarantula (Unsung Hero Most Wanted)
 * Wonderland Gang (Through The Looking Glass Most Wanted)
 * Mad Hatter
 * Tweedledee and Tweedledum
 * March Hare
 * The Lion
 * The Unicorn
 * The Walrus
 * The Carpenter
 * Arkham Knight (Main Story)

Thug Types

 * Thug
 * Blunt Weapon Thug
 * Bladed Weapon Thug
 * Armed Thug
 * Riot Shielders
 * Brutes
 * Minigunners
 * Martial Artists
 * Assassins
 * Talons
 * Medics
 * Jammer Thug
 * Thermal Vision Thug

Thug Factions

 * Joker
 * Harley Quinn
 * Bane
 * Scarecrow
 * Arkham Knight
 * Penguin
 * Two-Face
 * Riddler

Knight of The Knight
Playable Character: Nightwing

Nightwing must stop the forces of Bane, Penguin and Two-Face who are working together to take down the bat

Villains: Bane, Penguin, Two-Face (Main Story)

Anarky, Riddler, Azrael, Red Hood (Most Wanted Missions)

Locations: Gotham, Bludhaven

Death and Demonization
Playable Character: Red Hood

Red Hood Takes down the forces of an Imposter of him and as well as Poison Ivy's Guards and deal with an Issue from his past

Villains: Arkham Knight, Poison Ivy, The Joker (Main Story)

Professor Pyg, Flamingo, Lady Shiva, Killer Croc, Mister Zsasz (Most Wanted Missions)

Locations: Gotham

Blood Red
Playable Character: Red Robin

Red Robin finds data that Firefly and Mr. Freeze may be working together out of Arkham Asylum, so she vows to stop them

Villains: Firefly, Mr. Freeze (Main Story)

Electrocutioner, Bane and The Penguin (Most Wanted)

Locations: Gotham, Arkham Asylum

Head of The Demon
Playable Character: Robin

Robin, Desperate to go out on his own, finds out about a plot that Harley has against his father and as such, tries to finish her off

Villains: Harley Quinn (Main Story)

Firefly, Bane, Ra's Al Ghul, Talia Al Ghul (Most Wanted)

Locations: Gotham

Heir to The Cowl
Playable Character: Azrael

Azrael, Desperate to become Batman's Successor tries to prove himself by defeating the escapees from GCPD Maximum Security

Villains: Bane, Firefly, Mr Freeze, Harley Quinn, Black Spider (Main Story)

Black Mask, Scarface, Scorpiona (Most Wanted)

Locations: Gotham

Killing Joke
Playable Character: Batgirl

Batgirl deals with the Joker and Harley during a raid on The GCPD and then the other foundations of Gotham

Villains: Joker, Harley Quinn (Main Story)

Black Mask, Firefly, Deadshot (Most Wanted)

Locations: Gotham

Nine Lives
Playable Character: Catwoman

Catwoman, now a member of the Batfamily deals with the many villains that try to destroy Gotham and her deranged Sister

Villains: Sister Zero, Bane, Clayface, Poison Ivy (Main Story)

Riddler, Mr. Freeze and Deathstroke (Most Wanted)

Locations: Gotham, Wayne Manor

Jokes on You
Playable Character: Joker

Joker escapes Arkham and decides to toy with the Batfamily

Villains: Batman, Robin, Nightwing, Catwoman (Main Story)

Red Robin, Red Hood, Azrael (Most Wanted)

Locations: Arkham Asylum, Gotham

Insanity In The Knight
Playable Character: Harley Quinn

Harley travels to Bludhaven to save the other two sirens from corrupt police officers

Villains: Aaron Cash, Nightwing (Main Story)

Locations: Bludhaven

World Class Assassin
Playable Character: Deathstroke

Deathstroke is hired to take down some of the villains in Gotham

Villains: Deadshot, Firefly, Clayface (Main Story)

Mr. Freeze, Harley Quinn (Most Wanted)

Locations: Gotham

Father's Last Wishes
Playable Character(s): Talia Al Ghul, Jack Wayne

Talia and Jack have to deal with Talia's estranged sister and her reviving father

Villains: Nysaa Ratko, Azrael, Ra's Al Ghul (Main Story)

Locations: Siberia, Gotham

Batman

 * Gotham's Protector
 * Ace McGinnis Suit
 * Ace McGinnis Suit v2
 * Knightfall
 * Suit of Sorrows
 * First Night Outfit
 * GCPD Outfit
 * Batsuit V.8
 * Extreme Environment Batsuit (XE Batsuit)

Nightwing

 * Bludhaven Blue
 * Armored Nightwing Suit
 * Teen Titans Nightwing Suit
 * Jayden Grayson as Batman

Red Hood

 * Red Hood
 * Unmasked Red Hood
 * Arkham Knight
 * Skull Todd as Batman

Red Robin

 * Red Robin
 * Robin (Gina Drake)
 * Thrillseeker Robin (Gina Drake)
 * Gina Drake as Batgirl

Robin

 * Robin
 * League of Assassin's Uniform
 * Robin in Training
 * Jay Edward Wayne as Batman

Jack Wayne

 * Jack Wayne
 * Vigilante
 * League of Assassins