At the end when Special Agent Dennis Abbott is talking to Jane, someone bumps into Jane and his cup falls to the ground and shatters. This shattering of this cup, which Jane has had since he started at CBI, is symbolic foreshadowing that his time at CBI is about to end.
Rockmund Dunbar and Robin Tunney both previously appeared in "Prison Break"
In the movie "Who Was That Lady" (1960), Dean Martin convinces Tony Curtis that all FBI agents have black dots tattooed on their heels to identify themselves to each other. Martin shows Curtis four dots on his heel to convince Curtis that he is an undercover FBI agent. And, "J. Edgar Hoover has seven."