As Arrow recently wrapped its second season, spoilers for the third season have already started to emerge. Most recently a weighty bit of information relating to some new additions to the show was revealed.

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On June 14, TVLine revealed details from the an official casting call for The CW series. The information unveils not only the names of the characters but also very precise descriptions. The crew requires three men and one woman, and one of the characters will actually feature from the past in the show. The character of Toshi will actually be seen in flashbacks as Oliver Queen's (Stephen Amell) mentor in Hong Kong. The female character, Akiko, will be Toshi's wife. Fans should get excited as there is one "tech-powered superhero" -- Daniel -- and a new villain, a "well-educated criminal -- Seth.

Here are the official descriptions:

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"Daniel: Though Daniel could be a fake name to throw off spoilerholics, this 20-something gent - a major recurring character for Season 3 - is a handsome, enigmatic and highly intelligent entrepreneur developing groundbreaking technology. (Picture a business magnate in Ryan Gosling's body.) Though exuding charm and confidence in public, he privately harbors a tragic past that will drive him to become a tech-powered superhero. Watch for this formidable fella to be a love interest for Felicity and a rival of Oliver's - both personally and professionally.

Seth: A well-educated criminal with grand ambitions and a knack for chemistry, this potentially recurring character gains power over his enemies by exposing them to a drug that drains their willpower. Oh, and he is very much a physical match for The Arrow.

Toshi: Majorly recurring in (at least) the Hong Kong flashbacks, Toshi (late 20s/early 30s) will serve as Oliver's teacher and handler, and eventually become a friend. A well-trained operative, skilled in weaponry, combat and intelligence gathering, he is also a devoted father and husband.

Akiko: Toshi's wife is another of Oliver's Hong Kong caretakers, and is herself highly skilled in martial arts."

The finale, titled Unthinkable, of season 2 of Arrow aired on May 14 on CW.

Watch the teaser for the finale here: