Amick will play "sultry femme fatale" Selena Ellis in the episode titled 'Veiled Threat' airing July 5. Selena's suspected of marrying wealthy men for money, and the real question is: Will she catch Neal's (Matt Bomer) eye?
Ashbrook will guest star on the July 12 episode, 'Scott Free,' together with Hutch Dano ('Zeke and Luther'). He'll play Carlisle, a status-conscious millionaire playboy "who loves to spend big bucks on extravagant, over-the-top objects."
Robert John Burke (a.k.a. Bart Bass on 'Gossip Girl') will reportedly wreak havoc in the fourth episode, 'Dentist of Detroit,' airing June 28. The 'Rescue Me' alum will play an Irish mob boss with a taste for gambling who's in direct competition with the Deluca family. The Delucas, in their turn, are after con artist Mozzie (Wille Garson).
'White Collar' airs Tuesdays, 9PM ET on USA.