Pat Slattery better known by nickname Fat Pat or Slatts was previously a Barnhurst Officer. Her full name is Patricia Slattery. First seen in (419).Prison Officer. She started working at Wentworth in (470). But her first credit as Officer Slattery is in (473), and she is eventually dignified by being credited under her first name in (547). The only real plotline she has to herself is when she is suspended after being framed for the duplicate invoice racket uncovered by Julie Egbert (563). She continues in the series almost to the end: her last credit is in (690).

Officer Slattery was played by Dorothy Cutts.