Jeff Leaf has worked extensively on highly acclaimed television series from CSI: Miami to Southland. He has acted along side some of Hollywood's most respected actors such as Gary Sinise on CSI: NY and Jon Lithgow on Dexter. He also can be seen alongside Danny Glover & Sean Astin in the feature film Extraction.

He had a blast playing a narcotics detective, with the brilliant Willem Dafoe in the feature film Bad Country.

In his most recent work, he can be seen playing the role of Hank in Orange is the New Black, Paul in Blue Bloods, and Adam in Quantico.