Fringe Connections

Walter sent Peter the white tulip note from "White Tulip" in the mail and Peter received it in "An Enemy of Fate" after the future was successfully altered.

All of the people in Olivia's mind wear blacks and greys because Cortexiphan subjects have a strong desire to blend in.

The apple glyph can be seen as Olivia and Shapeshifter Charlie fight in the alley.

The Fringe team used the skin-growth toxin from "Ability" as a weapon against the Observers in "An Enemy of Fate".

The license plate on Olivia's SUV reads 1R2D21, and the licence plate on Broyles's SUV reads 1C3PO1.

The leaf glyph can be seen as Olivia and Shapeshifter Charlie fight in the alley.

The blue powder dispersal doll from "Concentrate and Ask Again" was seen in Walter's storage vault in "The Bullet that Saved the World".

William Bell's name is partially faded/scratched off of the door to the lab.

A butterfly can be seen on a lampshade near the front of Olivia's apartment.

When Peter left the hospital in "The Last Sam Weiss" he wrote "I am going home" on an envelope, the same phrase he wrote for Elizabeth in "Subject 13" when he tried to return to his home world.

Jones is working with Bell, who is alive.

A butterfly can be seen attacking Mark Young.

September's security system flashed the 'green-green-green-red' pattern from "The Equation" before exploding in "The Boy Must Live".

The Fringe team is part of a full-fledged branch of the Department of Defense in the Redverse.

A frog can be seen on the dock when Walter is high.

The Observers read Nina's phone call from the impressions her sound waves made on the glass in her office in "Anomaly XB-6783746", like Peter did in to hear the phone call Nancy Lewis made in "The Road Not Taken".

Mark Young's colleague is wearing a butterfly pin, possibly prompting the subject of his hallucination.

The flower glyph can be seen on the wall in the diner where Olivia and Lincoln meet.

The nanites in "Brave New World (Part 1)" have an "X" on them that matches the "X" on the shirt worn by the man Peter freed from Olivia's mind in "Lysergic Acid Diethylamide", suggesting that "Mr. X" from Olivia's mind may have been William Bell (who was ultimately behind the nanites).

One of the envelopes Peter sorted through said "Thank you for your support!", a direct message from the creators of Fringe to all the fans.

The flower glyph can be seen as Olivia and Shapeshifter Charlie fight in the alley.

Olivia has excellent aim in "Bound"; she killed Loeb's wife with a single shot to the head. It's stated in "Olivia" that Fauxlivia won an Olympic gold medal for marksmanship.

The hand glyph can be seen on the piano stool in the Orpheum Theater in the Redverse.

The child needed an air degradation unit in "Through the Looking Glass and What Walter Found There" because he needed a less oxygen-rich environment like where he was found underground in "Inner Child".