Sara's address (on the letter sent to her by Scofield) is on "Van Lear" Drive. Phillip Edward Van Lear plays one of the Correctional Officers at Fox River Prison.
When Michael calls out to T-Bag so Linc can grab him you can see a visible smile on the face of Wentworth Miller after he calls T-Bag "pretty"
Alex Mahone's drug of choice is revealed to be Midazolam, a powerful benzodiazepine sold under the brand name Versed. He states he needs 1,500 mg every 30 days from his dealer. That is a 50 mg per day, a very high dosage usually reserved for palliative, end of life care.