A pirate flag (skull and crossbones) appears on a TV monitor in 'There's More Than One of Everything', a reference to the Shapeshifter ability to remodel his skull and bones in 'A New Day in the Old Town' (which was filmed directly after this episode).
FRINGE DIVISION CASE FILE #201-91709
FRINGE EVENT: Shapeshifters
CLASSIFIED CASE CONNECTION(S): N/A
AGENTS ASSIGNED: Dunham, Francis, Jessup
SUPERVISING AGENT: Broyles
FILE ARCHIVED BY: Thomas Ticknor
WITNESSES/CONTACTS: N/A
LOCATION: Boston, MA; NYC
VICTIM(S): Agent Dunham, George Reed, Lloyd Parr, nurse [redacted], Agent Francis (deceased)
CASE REPORT SUMMARY:
Official outcome: A random traffic accident involving a federal agent. No extenuating circumstances.
SENATOR: "Unsubstantiated claims of invasion. Reports of technology run amok. The old 'X' designation and your Fringe investigations have been indulgences in the federal budget for over half a century."
PETER: "Na einai kalytero anthropo apo ton patera tou. You said that to me just after you woke up. Do you remember it?"
OLIVIA: "No. Latin?"
PETER: "Mm-mm. Greek. My mother used to say that to me every night before I went to bed."
OLIVIA: "There really isn't a point where things just can't get weirder, is there? What does it mean?"
PETER: "It means 'be a better man than your father'. Walter was already gone. It was like a code between my mother and me. It meant keep your people close. Take care of the people you care about."