Eddie Cahill broke into television in the role of Rachel’s helplessly unqualified but irresistibly attractive assistant Tad on “Friends.” Following this breakout performance, Cahill appeared in several television series, including “Sex and the City,” before landing his most career-defining role to date as homicide detective Don Flack in the long-running series “CSI: NY,” on the Network. Cahill’s feature film credits include “Miracle,” opposite Kurt Russell, and “Lords of Dogtown,” with Heath Ledger and Emile Hirsch. Cahill is from New York. Currently, he resides in Los Angeles with his wife and son. His birthday is Jan. 15. Follow Cahill on Twitter at @EddiePCahill.