The Legend of Korra has added several familiar names to its cast for Book 2: Aubrey Plaza, Lisa Edelstein and James Remar are among those voicing characters on upcoming episodes of Nickelodeon’s animated action-adventure series, EW has learned.

Plaza (Parks and Recreation) will play Eska, who is one of Korra’s Waterbending cousins, and whose twin brother, Desna, will be voiced by Joan of Arcadia‘s Aaron Himelstein. (Check them out in the image above, which was taken from an upcoming episode.) Remar (Dexter) will assume the role of Tonraq, the powerful Waterbender who is Korra’s father (and is pictured below), while Edelstein (House) will play Kya, Tenzin’s sweet-yet-impatient sister.

In addition, John Michael Higgins (Best in Show) has been cast as Varrick, an eccentric capitalist and self-proclaimed “Biz-Bender,” while Adrian LaTourelle (Sons of Anarchy) will tackle the role of Unalaq, Korra’s uncle and Chief of the Northern and Southern Water Tribes, who seeks assistance from Korra.

Book 2 — a.k.a. the second half of season 1 — picks up six months after Book 1 ended with Korra triumphing over Amon and the Equalists. Now she faces an even greater threat “as the physical and spirit worlds collide.” Consisting of 14 episodes, Book 2 will debut later this year.

The show’s main cast and executive producers will appear at a Comic-Con panel in San Diego on July 19.