"Suits" has finally revealed the identity of who turned in Mike Ross for fraud – Sheila Sazs! Sheila works for Harvard and had dated Louis Litt in the past. Sheila had discovered Mike's secret and sent an anonymous letter to Assistant U.S. Attorney Anita Gibbs.

According to executive producer Aaron Korsh, they had many possible characters to choose from like Robert Zane or Logan Sanders. Ultimately, Sheila was chosen because she didn't have any ulterior motives.

"I wanted there to be somebody that found out and handed him in because it was the right thing to do...That was the main reason; she wasn't doing it out of malice or to get back at Mike or revenge. It was just like, this is her job and she did it. That's why I wanted it to be Shiela," Korsh explained.

Korsh also revealed that Sheila will be returning to "Suits" and that her return will have a big impact on Louis.

Now that Mike has been outed, there's no stopping Gibbs as she tries to convict Mike. There also seems to be no stopping Harvey Spectre in the lengths he would go through in order to save Mike.

In the upcoming episode titled "God's Green Earth," Mike and Harvey have difficulty agreeing on a trial strategy that will allow them to beat Gibbs. While Gibbs has turned out to be a very formidable opponent, Korsh revealed that the attorney is simply doing her job.

"Anita certainly wants to win this case, but we do reveal in later episodes that it's not solely about winning for her. It's about how they did break the law and she's trying to do the right thing," Korsh added.

After going after Donna and her father in the previous episode, Gibbs is now coming after Rachel. Gibbs questions the validity of Rachel's LSAT scores and seems to suggest that Rachel had cheated by letting Mike take the test. 

Also in the episode, Jessica begins to worry about the consequences of Mike's arrest and how it is affecting their clients and the firm's reputation.

Season 5 of "Suits" airs every Wednesday at 10 p.m. ET on the USA Network.