Batman: The Brave and the Bold was the first series produced by Warner Bros. Animation to be broadcast in high definition.

The show deliberately adopted a lighter, more comic and simpler tone than previous Batman series, presenting the character with a dry, ironic wit aimed at younger viewers.

In the episode 'Legends of the Dark Mite!', the character Bat-Mite breaks the fourth wall to read a message from one of the show's creators defending the lighter tone of the series as being just as valid as darker interpretations of Batman.

The creators deliberately chose to focus on lesser-known DC characters, many of whom had been frequent team-up partners with Batman in the 1970s run of the original Brave and the Bold comic book, such as Green Arrow, Wildcat, and Plastic Man.

The show favored lesser-known versions of major heroes, such as Guy Gardner and Jay Garrick, over the more popular Hal Jordan and Barry Allen, even though the latter also appeared.

Batman's alter ego Bruce Wayne was never shown as an adult with an unmasked face until the season 2 episode 'Chill of the Night!', when he finally confronts Joe Chill; after that episode, Bruce Wayne's face was no longer kept silhouetted.

The series contains various references to other depictions of Batman in media, including the 1960s Batman TV series.

The comic book tie-in series, which began in January 2009, sometimes featured characters like Superman, Wonder Woman, Captain Marvel Jr. and Mary Marvel before they appeared in the show, while others such as Power Girl, Kid Eternity, Brother Power and Angel and the Ape appeared only in the comic and never on the TV series.

Brave and the Bold director Ben Jones noted that character depictions in the comic book often didn't match their television counterparts because the comic artists were not given reference sheets.