|Nickname||Knock-off Suit, Suit 2.0, Suit The Sequel|
|Birth Date||April 24, 1977|
|Specialty||White Collar Crimes|
|Portrayed By||Warren Kole|
|First Appearance||Out of the Frying Pan|
|Last Appearance||Controlling Interest|
|Episode Count||2 episodes|
|Images of Siegel|
Siegel was a top graduate at Quantico and served as a supervisor in the Chicago White Collar division for almost three years. While there he was a handler for a C.I. in a program modeled after Neal & Peter's. His case closure rate was in the 70 percentile and wanted to come to New York and be in the 80 percentile.
He is divorced and from a wealthy family. His grandfather owned a business that had a monopoly on making elevator buttons. Siegel grew up knowing bankers, stock brokers and trust-fund kids and came to realize he was surrounded by criminals. He never felt he fit in and joined the FBI instead of joining the family business. After arresting family friends, he was disowned by his family. His wife left him because she missed the life of a 'Siegel' and instead got the life of an 'Agent Siegel'.
In "Out of the Frying Pan" Siegel transfers to the New York division and is assigned as Neal's handler. For their first case, Neal and Siegel investigate Little Star Merchandise, an importer and seller of looted art and antiquities. Unknown to Siegel, Little Star is operated by Mozzie.
In "One Last Stakeout" Neal and Siegel try to catch an art thief. The theft of a painting, orchestrated by Neal and Mozzie, is a cover-up for Neal's attempt at stealing a chapter from a book for Hagen. After catching the thief, Siegel goes looking for apartments in Greenwich Village; while looking, he is shot and killed during a "mugging gone wrong". Eventually, we learn that while investigating, Rebecca Lowe aka Rachel Turner was the culprit behind Siegel's death.