And wait until you see who’s in it! AND WAIT UNTIL YOU HEAR WHAT HE SAYS. Oh my Losties, you will love this as I do. We told you last month that we’d be seeing Henry Ian Cusick in an upcoming episode of Fringe, and now, here he is. Yes he was in Teaser #3 as well, but this is more Desmond-ish. Are you ready? Check. It. Out.

TV Spot: Fringe – April 20th is the Nineteenth Teaser #1

[youtube]http://www.youtube.com/watch?v=5fD3B319THE&hd=1[/youtube]

And here are the previous three:

TV Spot: Fringe – April 20th is the Nineteenth Teaser #1

[youtube]http://www.youtube.com/watch?v=NeEbyh-B36A&hd=1[/youtube]

TV Spot: Fringe – April 20th Is The Nineteenth Teaser #2

[youtube]http://www.youtube.com/watch?v=cUbWRaqgwXE&hd=1[/youtube]

TV Spot: Fringe – April 20th is the Nineteenth Teaser #3

[youtube]http://www.youtube.com/watch?v=EtdU4eoHBMM&hd=1[/youtube]

THREE MORE DAYS until “Letters of Transit.” COME ON, FRIDAY!

UPDATE: Many thanks to our Twitter friend @ObFuSc8 for informing us of the hidden URL pieces in each of the teasers! Teaser #4 included the final piece, which lead to a preview of the amazing title sequence for Friday’s episode! Thanks as well for saving us and you the trouble, and sending us the link. Special thanks to Ari Margolis (@jonxproductions) for the puzzle and Andrew Kramer (@videocopilot) for the exceptional title sequence:

[youtube]http://www.youtube.com/watch?v=Gu8iAoyxaEA&hd=1[/youtube]

Fringe, starring Anna Torv, Joshua Jackson and John Noble, airs Fridays at 9/8c on Fox.