The second season of DC Universe's Titans introduces several new characters, friends and foes alike, drawn from the comic book source material. Along with new additions, the live-action series will also reintroduce viewers to young heroes only touched upon in the debut season, like Donna Troy and Jason Todd. The new trailer for Season 2, which premieres Sept. 6, also showcases some costume changes, most notably with Raven, who sports a look straight from the Teen Titans cartoon.

Here are all of the character additions and reveals from the new footage.

BRUCE WAYNE

It was announced in April that Game of Thrones alum Iain Glen will play Bruce Wayne in Titans Season 2. Of course, the 58-year-old actor portrays an older version of the Caped Crusader, a seasoned fighter who has been in the vigilante role for quite some time -- at least, enough to be on his second Robin. The trailer depicts Glen's Bruce in conversation with Dick Grayson (Brenton Thwaites) about his team's exploits. Grayson looks none too amused, placing emphasis on the strained relationship between the two touched upon in Season 1.

WONDER GIRL

Viewers were introduced in Season 1 to Conor Leslie as Donna Troy, Dick Grayson's best friend and Wonder Woman's former sidekick. She had retired from the superhero life, but still investigates crime through her job as a photographer. In this new footage, we see Donna back in her Wonder Girl costume.

RELATED: Titans Season 2 Adds House of Lies Alum as Cadmus Doctor

AQUALAD

Drew Van Acker (Devious MaidsPretty Little Liars) joins the series as Aqualad, with the trailer offering the first look at the character in action. Garth appears to be dressed in a more modern version of his Aqualad costume, featuring the red-and-blue color scheme with the iconic Aquaman sigil.

SUPERBOY

Introduced in the post-credits scene of the Season 1 finale, Superboy is brought out of the shadows in this new footage. While several set photos have surfaced, this footage officially delivers Joshua Orpin in costume, and in action, as Conner Kent.

KRYPTO

Also teased in that post-credits scene, Krypto the Superdog clearly escapes Project Cadmus along with Conner to become part of the Titans lineup. He even as a name tag that reads "Krypto."

JERICHO

The trailer also introduces Chella Man as Jericho, who in the comics is the estranged son of Deathstroke turned member of the Titans. Joseph Wilson has a long and complicated history with the Titans, and has oscillated over the years between ally and adversary.

ROSE WILSON

Played by Chelsea Zhang, Rose Wilson, aka Ravager, has an equally complicated history. Her father, Deathstroke, once injected her with a serum that caused her to go mad. Although she wasn't always shown as his sidekick, in an attempt to prove her loyalty to him, she gouged out an eye to match his own. She later joined the Teen Titans.

DEATHSTROKE

With Jericho and Rose joining the cast, it's no surprise Deathstroke himself makes an appearance in the trailer. Played by Esai Morales, the assassin and mercenary is the team's most iconic foe in the comics. From the looks of it, Slade Wilson has already made a name for himself, as we can hear Jason Todd proclaim, "No way! Deathstroke."

RELATED: Titans: Esai Morales' Deathstroke Takes Aim in Leaked Season 2 Photo

ALPHA CENTURION ... MAYBE?

There's a quick shot of Jason Todd fighting someone in a tunnel. Although it's unclear who this person is, he bears a resemblance to the C-list DC character Alpha Centurion. However, due to the appearance of Deathstroke and the Wilson family, it's possible this mystery character may be Grant Wilson, the first Ravager. In the comics, Grant is Deathstroke's eldest son, whose death motivates Slade to hunt down the Titans. Dr. Light is also a very real possibility, considering the villain was rumored for Season 2.

Now streaming on DC Universe, Titans stars Brenton Thwaites as Dick Grayson, Anna Diop as Kory Anders, Teagan Croft as Rachel Roth and Ryan Potter as Garfield Logan, with Rachel Nichols as Angela, Seamus Dever as Trigon, Minka Kelly as Dawn Granger, Alan Ritchson as Hank Hall and Curran Walters as Jason Todd. Season 2 arrives Sept. 6.

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