On September 5, it was announced that Carrie Diaries alum Austin Butler will be joining the cast of Arrow for season 3.

First Full-Length Arrow Trailer For Season 3 Feat. The Atom Revealed

Butler will be playing Chase, a DJ, who will play an important role in Thea Queen's (Willa Holland) life as he will woo her and she will fall for him. According to an Entertainment Weekly report the character will be introduced in episode 7 of the next chapter.

Recently, another bit of majore casting news -- the actor playing the main villain in season 3 -- was revealed. On September 4, The Hollywood Reporter reported that the actor had been cast in the meaty role of Ghul. The villain will make his appearance in the fourth episode of the season, titled The Magician, which is also going to be the show's landmark 50th. The Australian actor is best known for his work on Riddick.

First Look At Count Vertigo In Season 3 Revealed 

Even Oliver Queen (Stephen Amell) will be getting a new lover, (ahem, obsessive stalker), whose attention he will have to fight to avoid, in the next season. Supernatural alum Amy Gumenick will be playing the villainous character of Carrie Cutter a.k.a Cupid, who also has a dangerous crush on Oliver.

In other recent guest star announcements it was revealed that Glee alum Nolan Funk would be coming on board to play Felicity's (Emily Bett Rickards) former lover on the show. He will be part of the fifth episode titled The Secret Origin of Felicity Smoak. The actor will likely be part of flashbacks as he will be portraying Cooper Seldon, Felicity's boyfriend from her past in MIT. He will be known for his hacking skills.

Here's the synopsis for season 3:

"In the aftermath of this victory, Season Three opens with Arrow now a hero to the citizens of Starling. Crime is down, people feel safer, and Captain Lance even calls off the Anti-Vigilante Task Force. Basking in his success, Oliver believes he can finally have a private life and asks Felicity out on a date. But the second Oliver takes his eye off the ball, a deadly villain reappears in Starling, forcing Oliver to realize that he can never be Oliver Queen - not as long as the city needs The Arrow."

The finale of season 2 of Arrow aired on May 14 on the CW.

Season 3 premieres on October 8 on The CW.

Watch the trailer for season 3 here: