The cat is finally out of the bag. After months of speculations, "Suits" has revealed that Sheila Sazs (Rachael Harris) was the one who ratted out on Mike Ross (Patrick J. Adams) about his fake credentials.

In the upcoming episode titled "Self Defense," viewers can expect Louis Litt (Rick Hoffman) to get back at his ex-girlfriend for ever daring to hurt the firm he has worked for most of his life. According to TV Guide, the lawyer will go all out on Sheila to make her realize how wrong she is to mess with Pearson Specter Litt. It was Sheila who sent the anonymous email to the feds about Mike's fraud. Ever since the truth came out, the firm has taken a lot of hits. The authorities are even convinced Mike's bosses know his secret and have been shielding him.

In an interview with Entertainment Weekly, showrunner Aaron Korsh talked about their decision to choose Sheila as the whistleblower. According to him, she was the perfect choice, because in real life, the righteous persons feel that it is their duty to do the right thing. In Sheila's eyes, Mike's sin is unforgivable because he has been telling everyone that he is lawyer, when he is not.

"What better person to do that than Sheila? She's straight, on the up-and-up, and this is an affront to her beloved Harvard Law School. She did it because it was the right thing, and I like that motivation better than someone trying to stick it to him," he said.

Meanwhile, Harvey Specter (Gabriel Macht) is gearing up for the trial where he will be defending Mike. Mike, however, wants to represent himself. Upon witnessing how determined prosecuting lawyer Anita Gibbs (Leslie Hope) could be, they better be preparing well, or else, Mike will be sitting duck in the upcoming trial. Korsh hinted that Gibbs would cause problems for the members of the Pearson Specter Litt and try to get them to turn on each other. Donna Paulsen (Sarah Rafferty) is reportedly her first target.

"Suits" season 5 airs Wednesdays at 10 p.m. EST on USA Network.