Fringe Connections

Broyles was hanging out at a jazz bar in "Midnight". His character in "Brown Betty" performs in one.

Madison Square Garden in the Redverse is quarantined in amber.

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

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

It is true that the Empire State Building's spire really was initially designed for airship docking as it was in the Redverse.

A leaf can be seen on the bio-scan monitor at the Liberty Island security checkpoint.

Walter used the same neural halo in "Alone in the World" as he used on the Child in "Inner Child".

There are 'Wanted' billboards for the Fringe team.

A hand can be seen on the wall when Olivia and Peter attack the Observers and Loyalists.

The hallucinogenic drug from "The Dreamscape" was used as a weapon against the Observers in "An Enemy of Fate" to make them think they were being attacked by butterflies.

Peter's shared dream state with September looks like an observation deck.

A seahorse can be seen on the Bishops' refrigerator.

The laser knives that the Observers nearly used to operate on Michael in "Liberty" were used by Mr. Gemini in "Brown Betty".

When Walter explains that his red/blue lensed glasses were created by his friend from Washington, Doctor Jacoby, he's referencing the television show 'Twin Peaks' which also had an eccentric man of science, Doctor Jacoby, who wore red/blue lensed glasses very similar to Walter's.

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

The Beacon from "The Arrival" appeared in "Brown Betty" as the Watchers attempted to locate Peter.

This episode reveals that there is more than one Observer. The intro sequence since the pilot episode has had a single frame that says "OBSERVERS ARE HERE".

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

The Fringe team used the skin-growth toxin from "Ability" as a weapon against the Observers and Loyalists in "The Bullet that Saved the World".

The Fringe team is the First People. Walter sent the parts of the machine back through time via the wormhole in Central Park. That's why the First People had such a knowledge of Peter and Olivia.

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

A leaf glyph matching the Massive Dynamic security screen in "Pilot" is displayed on the bio-scan monitor on Liberty Island in "Neither Here Nor There".

Olivia pulled up a list of the frozen heads found in S02E04 'Momentum Deferred' and they were all marked with "2E204", a reference to the episode in which they were stolen.

A butterfly can be seen painted on the side of a white trash can.