Meeting Sylvia's Greek family causes Sipowicz to fall off the wagon, sparking a period of strain in their relationship.
Sylvia is confident on the job, and is known to wield an acid tongue when cops' procedural errors blow her cases.
After they become engaged, Andy expresses a desire to get married quickly in a Maryland civil service, while Sylvia wants a traditional Greek Orthodox wedding.
Andy confesses that his greatest fear is not to be with her and baby Theo, to which she quietly replies, "Then be with us," finally convincing him to take the test.
The character returns to her job after time off to raise her on-screen son, but she is killed by James Mayo in a courthouse shooting incident.