'Supergirl' Adds Four New Characters to Season 3!

Melissa Benoist is joined by her Supergirl cast mates as they attend the 2017 Comic-Con on Saturday morning (July 22) in San Diego, Calif.

The 28-year-old actress and the cast – including Odette Annable, Mehcad Brooks, Jeremy Jordan, David Harewood, Chris Wood, and Katie McGrath – attended the event to share the latest scoop on the upcoming third season of their show.

PHOTOS: Check out the latest pics of Melissa Benoist

It was announced that same day that four new characters will be joining the upcoming season of Supergirl.

Adrian Pasdar and Yael Grobglas have both been cast as villains while Carl Lumbly will be playing J’onn J’onnz’s father from Mars. Also joining the show is Emma Tremblay who will be playing a teen fascinated by Supergirl.

Supergirl returns for season 3 on Monday, October 9 on The CW.

10+ pictures inside of the Supergirl cast at Comic-Con…