Fringe Easter Eggs: The Observer in Dream Logic

The Observer can be spotted walking down the stairs of the Nayak Sleep Clinic.

You can see all of The Observer's other appearances here.

Fringe Easter Eggs: Glyphs in Dream Logic

The Glyphs code in the Fringe episode Dream Logic spelled out BETRAY, which Charlie did to Olivia, and Dr. Nayak did to himself.

For more information on the Fringe Glyphs, check out Fringepedia's Glyph / Symbols page, which has all the previous glyphs and codes.

Fringe Easter Eggs: The Observer in Momentum Deferred

The Observer was spotted just outside Massive Dynamic, as Olivia leaves to meet (then fight) bad Charlie.

You can see all of The Observer's other appearances here.

Fringe Easter Eggs: Glyphs in Momentum Deferred

The Glyphs code in the Fringe episode Momentum Deferred spelled out MEMORY, which Olivia recovers thanks to blended worms and the sound of a bell.

For more information on the Fringe Glyphs, check out Fringepedia's Glyph / Symbols page, which has all the previous glyphs and codes.

Fringe Easter Eggs: Glyphs in Fracture

The Glyphs code in the Fringe episode Fracture spelled out BURIAL, which could be a reference to Peter's grave, or something else?

For more information on the Fringe Glyphs, check out Fringepedia's Glyph / Symbols page, which has all the previous glyphs and codes.

Fringe Easter Eggs: Observer in Fracture

The Observer can be seen in a diner at the very end of the Fringe episode Fracture.

You can see all of The Observer's other appearances here.