|Full Name:||Ronnie Brannigan|
|Cause of Death:||Shot in the head|
|Home:||New York, New York|
|Portrayed by:||Exander Berkeley|
|First appearance:||"The Cheese Stands Alone"|
|Latest appearance:||"Eats, Shoots and Leaves"|
Ronnie "Dogstick" Brannigan is a recurring character in CBS' Zoo. He is a FBI Agent out to seek revenge for the murder of his fellow agent, and protégé Ben Shaffer. He serves as the Secondary antagonist for the second half of Season 1.