[s5e17] Bite | Out Of Crime

(Angie Harmon) – Leads the sniper investigation.

The following regular cast members appear in this episode according to the Rizzoli and Isles Wiki : [S5E17] Bite out of Crime

While searching the crime scene, Jane Rizzoli and Vince Korsak discover a man hiding in the bushes who attempts to bite Korsak. This witness, nicknamed "McGruff," is suffering from a psychotic break and believes he is a wolf. Maura Isles takes a clinical approach, nursing his wounded hand and attempting to win his trust to gain a statement that might identify the sniper. (Angie Harmon) – Leads the sniper investigation

(Lorraine Bracco) – Celebrates Maura's election as president of NEMO. Subplots & Personal Developments [S5E17] Bite out of Crime

(Bruce McGill) – Investigates the park scene and is nearly bitten by the witness.