In a new trailer for “Supergirl” Season 4, fans can catch a glimpse of cast newcomer Nicole Maines as Nia Nal, a.k.a. Dreamer, a.k.a. the first transgender super hero on TV.

“Fear. No matter how much we believe in ourselves, that never really goes away,” Kara Danvers (Melissa Benoist) said to her new co-worker Nia Nal in the trailer.

“I think, ‘I’m not afraid of anything,’ and then something chases me back down the rabbit hole. But once we catch ourselves, we have to jump right back out there,” Kara continued. And it seems like there’s plenty to be afraid of this season, with a shot of Lex Luthor’s former bodyguard Mercy Graves (Rhona Mitra) in the trailer as well.

Also Read: Welcome to The CW's Super Season: Supergirl, The Flash, Arrow Are Back in New Trailer (Video)

Maines’ role in “Supergirl” Season 4 was announced this summer at San Diego Comic-Con. Her character is described as “A soulful young transgender woman with a fierce drive to protect others, Nia’s journey this season means fulfilling her destiny as the superhero Dreamer (much like Kara came into her own as Supergirl).”

Other newcomers this season include April Parker-Jones as Colonel Haley and David Ajala as Manchester Black.

Watch the trailer above.

“Supergirl” Season 4 premieres on a new night Sunday, Oct. 14, on The CW.

9 Movies and TV Shows to Watch After 'Wonder Woman' (Photos)

Coming off a "Wonder Woman" high and don't want to lose that rush of girl power and badassery? Here are some recommendations on what to watch next.
Batman v Superman: Dawn of Justice
If your immediate need is to see more of Gal Gadot as Wonder Woman, check out her debut in this otherwise forgettable prequel.
Warner Bros
Buffy the Vampire Slayer
Into every generation, one iconic kick-ass female superhero is born, and Buffy is still that for a legion of fans.
The WB
Supergirl
TV's latest superhero kicks ass and constantly references the women who came before her, in the form of appearances from former Supergirls and Wonder Women like Helen Slater and Lynda Carter.
The CW
Captain America: The First Avenger
In case you need another dose of an inherently good and compassionate hero who fights Nazis and gets swept up in an amazing but ultimately doomed wartime romance.
Marvel
Jessica Jones

This Netflix series boasts one street smart power woman.
Marvel
Wonder Woman
Lynda Carter started it all when she played the iconic live-action version of Diana Prince in the 1970s TV series, which still resonates with fans to this day.
CBS
Monster
Patty Jenkins' first film went on to make $8 million dollars and won Charlize Theron her first Oscar. See why she was the perfect director to bring "Wonder Woman" to life this time around.
Superman (1975)
"Wonder Woman" director Patty Jenkins has referenced this Christover Reeve classic as inspiration for her 2017 classic. It certainly is a respite from the more gritty take on the character of the Zack Snyder era.
Nikita
Any version of Luc Besson's "Nikita" is worth a look, but The CW's most recent take, starring Maggie Q, is particularly satisfying.
The CW