Jeff Fahey, Kevin Tighe

Lost alums Jeff Fahey and Kevin Tighe have landed roles on USA's forthcoming cop drama Common Law, EW reports.

Fahey — who starred as Captain Frank Lapidus on Lost — will play a narcotics detective who struggles with his own substance abuse issues, while Tighe (who played John Locke's father, Anthony Cooper), is set to portray a missing persons detective.

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The duo will join former Lost co-star  Sonya Walger , who will recur as Dr. Emma Ryan, an intelligent and attractive Beverly Hills psychiatrist who splits her time writing pill prescriptions for her wealthy clients and offering low-cost group therapy at the local community center. Walger played Penny Widmore on the ABC hit.

The series, which is slated to premiere this summer, stars Michael Ealy and Warren Kole  as homicide detectives who are ordered into couples counseling by their captain.