Crowd Play, a feature implemented in the predecessor, also returns for The Enemy Within, allowing streamers to let their audience interact with their session with the game.

The player once again assumes control of Bruce Wayne / Batman (Troy Baker), a billionaire who secretly fights crime in Gotham City.

His butler and former legal guardian Alfred Pennyworth (Enn Reitel), Police Commissioner James Gordon (Murphy Guyer), and Wayne Enterprises Chief of Technology Lucius Fox (Dave Fennoy) return to assist Batman in the field.

New supporting characters are introduced, including Special Agent Iman Avesta (Emily O'Brien), one of the Agency's operatives and a fan of Batman, and Tiffany Fox (Valarie Rae Miller), the daughter of Lucius and an employee at Wayne Enterprises.

"John Doe" (Anthony Ingruber) and Selina Kyle / Catwoman (Laura Bailey) also return, now members of a group of criminals called "the Pact".

Other members of the group include Riddler (Robin Atkin Downes), Bane (JB Blanc), Dr. Victor Fries / Mr.

Detective Renee Montoya (Sumalee Montano), Reporter Jack Ryder (Robert Clotworthy) and Wayne Enterprises Chairwoman Regina Zellerbach (Lorri Holt) return with smaller roles within the series.

New minor characters introduced include Police Detective Harvey Bullock (Keith Szarabajka), Agency operative Vernon Blake (Christian Lanz), international arms dealer Rumi Mori (Keone Young), Riddler's second-in-command Eli Knable (Alex Hernandez), and Stacked Deck patrons Frank Dumfree and Willy Deever (Kirk Thornton and Dave B. Mitchell respectively).

A year after defeating the Children of Arkham, Bruce Wayne witnesses the return of the Riddler to Gotham while investigating arms dealer Rumi Mori.

Freeze, Bruce and Waller's aide Iman Avesta learn that the Lotus virus was a failed SANCTUS project, with Riddler the only survivor of its experiments.

Weeks later, John reemerges as the Joker, either a vigilante with a twisted sense of morality or a villain colluding with Harley to exact revenge on Bruce for "betraying" him.

The latter scenario has Harley distributing the Lotus virus across Gotham in an attempt to recreate the healing serum from another survivor's blood, while Joker pits Bruce against Gordon, Tiffany, Alfred, and Selina Kyle in cruel games of trust.

Scott Maslow from GQ said it managed to make "Batman's most overexposed villain interesting again; The Joker has always said his past is multiple-choice, but this is the first time I've felt like I was the one checking the boxes".

[28] Tamoor Hussain from GameSpot gave the final episode a 9/10, concluding: "While Telltale's first Batman season stuck a bit too close to established mythos and delivered an underwhelming ending, the second is a memorable Joker origin story that Bat-fans should make a point of playing".

[29] Stephanie Chan from VentureBeat was slightly less enthusiastic but still gave the game a score of 80/100: "By the end of the series, I'll say that Batman: The Enemy Within has tentatively won me over.