White Collar fans can expect the return of an important character in the final two episodes of season 5.

Marsha Thomason - who plays Special Agent Diana Berrigan - is returning to White Collar in episode 12 and 13, according to a new report by TVLine. Diana revealed that she was pregnant in the season 5 premiere and delivered her baby in episode 2 of the new season.

She and her baby will become important to a storyline in the final episodes of season 5.

"Eventually there's a new cast member on the show - Diana has a baby, and it is the baby who helps one of our characters in an episode. That's all I can say," said cast member Tim DeKay (who plays Peter Burke).

In other White Collar news, the team will be investigating some interesting new cases in upcoming episodes. In episode 5, titled Master Plan, Neal (Matt Bomer) will pose as a butler to expose an imposter in order to protect a wealthy Manhattan family's fortune.

White Collar Season 5 Spoilers: Will Amanda Callaway Return for Season 5? [VIDEO] 

Richard Thomas (The Waltons) will play Grant Wolcott, the wealthy patriarch of the Manhattan family. Zachary Booth, who played Patty Hewes' (Glenn Close) son in the FX drama Damages will play Patrick Wolcott, the family's "prodigal son." Kara Hayward, who had her debut performance in 2012's Moonrise Kingdom, will be playing the family's adolescent heir, Beatrix Wolcott.

In episode 6, titled Ice Breaker, Neal and Peter try to uncover a smuggling ring in Little Odessa through "infiltrating the criminal underworld."

White Collar Season 5 Spoilers: Emmy Winner Guest Starring as Fossil Thief

White Collar airs Thursdays at 9 p.m. on the USA network.

Watch a preview for the next episode of White Collar below:

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