"Gotham" has found a new Poison Ivy for the coming third season of the show. According to IGNMaggie Geha will join the show as the new villainess.

Geha is known for her role in both "Ted 2" and "The Rewrite" and will appear in the third season as a series regular. She will take over the role of Ivy Pepper from Clare Foley, who previously played a younger version of the character in both Seasons 1 and 2. 

A character description for the new Ivy Pepper has been revealed and reads: 

"Following an encounter with a monster from Indian Hill, Ivy Pepper finds herself reborn, and one step closer to the DC villain she is destined to become: Poison Ivy. Now a 19-year-old woman who’s harnessed the full power of her charms, she sets her sights on Bruce Wayne (David Mazouz)."

Meanwhile, Jamie Chung has been cast to play Valerie Vale in the coming third season. According to TV Line, sources have confirmed this casting, and also that Valerie Vale is Vicki Vale's aunt.

Chung is known for her role as Mulan in ABC's "Once Upon a Time," as well as her appearance in "Sucker Punch," "The Hangover" and "Sin City: A Dame to Kill For." She also voiced the character Go Go in Disney's "Big Hero 6."

In "Gotham," Valerie Vale will be a new reporter at the Gotham Gazette who is determined to find out what is happening at the Indian Hill research facility. Confident and dogged, Valerie will do anything to get the scoop, and soon sets her sights on Gordon (Ben McKenzie), who she believes is the key lead in her story." This character is closely related to Vicki Vale, who in the comics is a reporter and follows the activities of the masked vigilante, Batman.

"Gotham" Season 3 will debut on Sept. 19 at 8 p.m. EDT on Fox.