Tim Drake in the context of Sidekick

The Batman supporting characters are fictional characters that appear in the American comic books published by DC Comics featuring the superhero Batman as the main protagonist.

"Batman family" or "Bat-Family" is the informal term for Batman's closest allies, who are mainly masked vigilantes operating in Gotham City. Since the Bat-Family's introduction in 1939, Batman has accumulated a number of recognized supporting characters. The first Batman supporting character was Commissioner James "Jim" Gordon, Batman's ally in the Gotham City Police Department, who first appeared with Batman in Detective Comics #27 (May 1939). Some of the other allies of Batman include his vigilante partner, Robin, who was introduced in 1940; his butler, Alfred Pennyworth, who was introduced in 1943; and Barbara Gordon, who was introduced in 1967.

Robin is the alias of several superheroes appearing in American comic books published by DC Comics. The character was created by Bob Kane, Bill Finger, and Jerry Robinson to serve as a junior counterpart and the sidekick to the superhero Batman. As a team, Batman and Robin have commonly been referred to as the Caped Crusaders and the Dynamic Duo. The character's first incarnation, Dick Grayson, debuted in Detective Comics #38 (April 1940). Conceived as a way to attract young readership, Robin garnered overwhelmingly positive critical reception, doubling the sales of the Batman titles. Robin's early adventures included Star Spangled Comics #65–130 (1947–1952), the character's first solo feature. He made regular appearances in Batman-related comic books and other DC Comics publications from 1940 through the early 1980s, until the character set aside the Robin identity and became the independent superhero Nightwing.

The character's second incarnation, Jason Todd, first appeared in Batman #357 (1983). He made regular appearances in Batman-related comic books until 1988, when he was murdered by the Joker in the storyline "A Death in the Family". Jason was resurrected following a reality-changing incident, eventually becoming the Red Hood. The premiere Robin limited series was published in 1991, featuring the character's third incarnation, Tim Drake, training to earn the role of Batman's vigilante partner. After two successful sequels, the monthly Robin series began in 1993 and ended in early 2009, which also helped his transition from sidekick to a superhero in his own right. In 2004 storylines, established DC Comics character Stephanie Brown became the fourth Robin for a short time before the role reverted to Tim Drake. Damian Wayne succeeds Drake as Robin in the 2009 story arc "Battle for the Cowl."

Damian Wayne (né al Ghul) is a superhero appearing in American comic books published by DC Comics, commonly in association with Batman. He was created by Grant Morrison and Andy Kubert. Damian Wayne is the biological son of Bruce Wayne/Batman. His mother is Batman's love interest Talia, daughter of Batman's adversary Ra's al Ghul, who wants Bruce Wayne to sire his future lineage. Talia calls off their marriage once she falls pregnant and tells Bruce she miscarried, keeping Damian's existence hidden until Batman #656 (2006). Damian was intended to kill and replace Batman and serve as a host body for Ra's al Ghul, which would unify the Wayne and al Ghul factions. Damian is Bruce's youngest child and only biological one, with Dick Grayson, Jason Todd, Tim Drake, and Cassandra Cain as his adopted siblings.

A prototype of the character originally appeared as an unnamed infant in the 1987 story Batman: Son of the Demon, which at the time was not considered canon. Following this, various alternate universe stories dealt with the character's life, giving him various names. In 2006, the character was reinterpreted as Damian Wayne by Grant Morrison, and introduced into the main continuity in Batman #655, the first issue of the "Batman and Son" story arc. Damian Wayne is the fifth character to assume the role of Robin, Batman's vigilante partner.

Richard John "Dick" Grayson is a superhero appearing in American comic books published by DC Comics, commonly in association with Batman, the Teen Titans, and the Justice League. Created by writer Bill Finger and artist Bob Kane, he first appeared in Detective Comics #38 in April 1940. Dick is the original and most popular incarnation of Robin, Batman's crime-fighting partner – together known as the Dynamic Duo. In his origin story, he is the orphaned son of master acrobats the Flying Graysons who is later adopted by Batman's alter ego Bruce Wayne.

Dick Grayson has undergone significant character development since originally introduced in 1940. In 1984, he graduated from the role of Robin to become the adult superhero Nightwing, protector of the city of Blüdhaven, Gotham City's economically troubled neighbouring city. Since then, as Bruce's eldest son, Dick has taken on an older brother figure to his male successors as Robin – tearaway Jason Todd, teenage prodigy Tim Drake, and trained assassin Damian Wayne, who is also Batman's biological child. Among other members of the Batman Family, his closest relationships are with Batman's loyal butler and father figure Alfred Pennyworth, and with his romantic interest Barbara Gordon, who served as Batgirl alongside Dick as Robin, and who later aids Nightwing as Oracle. Dick has also taken up the mantle of Batman himself on a number of occasions when Bruce was missing, incapacitated, or believed dead.

Stephanie Brown is a superheroine appearing in American comic books published by DC Comics, most commonly in association with the superhero Batman. The character first appeared in Detective Comics #647 (June 1992), and was created by Chuck Dixon and Tom Lyle.

The character originated as the amateur crime-fighter Spoiler, who had taken it upon herself to foil her criminal father Cluemaster's schemes. Establishing herself as a Gotham vigilante, she would have a short, unsuccessful stint as the fourth incarnation of Batman's partner and sidekick Robin in the early 2000s, replacing her longtime love interest Tim Drake. Her time as Robin is plagued with struggles and dissensions with Batman, who eventually fires her shortly before her death at the hands of Black Mask. She is later revealed to have survived and returns as Spoiler, resuming her romantic relationship with Drake. In 2009, Cassandra Cain, the latest Batgirl, entrusts the costume and monicker to Brown; although she is initially reluctant due to Brown's disastrous spell as Robin, former Batgirl Barbara Gordon later takes Brown as a pupil, and the character's run as Batgirl largely redeems her, including in Batman's eyes.