To celebrate the 15th anniversary of How I Met Your Mother and hide from the hellscape that is 2020, I'm watching #HIMYM from the beginning on @hulu. #HIMYM15

The Punisher (or Shane from #TWD or Lee Iacocca) -- Jon Bernthal -- was Carlos, a guest at the infamous three night party.

#HIMYM S1E2

Before she was Cutthroat B*tch on #HouseMD, Anne Dudek was Ted's Krav Maga-ing ex Natalie.

#HIMYM S1E4

Glee and Freaks and Geeks meet HIMYM.

Jayma Mays is working coat check at a club Samm Levine can't get into.

#HIMYM S1E5

Ted managed to break Camryn Manheim's dating algorithm.

#HIMYM S1E7

Marshall had the coolest dad.

Dauber in Coach and Patrick in @SpongeBob!

#HIMYM S1E9

Winnie Cooper!

Danica Mckellar was at the center of the Pineapple Incident.



#HIMYM S1E10

She didn't end up being The Mother, but Ashley Williams' Victoria was the best of Ted's girlfriends.

#HIMYM S1E12

Three episodes, three husbands.

Cobie Smulders: Taran Killam as Barney's "steak sauce" co-worker

Alyson Hannigan: Alexis Denisof as newspaper reading newsman Sandy Rivers

Neil Patrick Harris: David Burtka as Lily's HS boyfriend Scooter

#HIMYM S1E17/18/20

Funk legend George Clinton!!

In Marshall's mind he was wooing Lily with a ferret.

#HIMYM S2E1

Fun fact: Alex P. Keaton and Ted Mosby have the same father: Michael Gross.

#HIMYM S2E3

I'm just gonna assume most Columbia law students don't look like Joe Manganiello

#HIMYM S2E4

Bryan Cranston designed a building Ron Jeremy would've been proud of.

Meanwhile Jane Seymour was a Barney-breaking cougar.

#HIMYM S2E6

Mrs. Nicholas Brody, Morena Baccarin, was dating Marshall but had a case of crazy eyes.

#HIMYM S2E7

Barney had the best brother and wing man in Wayne Brady.

#HIMYM S2E10

Got a secret, can you keep it?

Robin's sister visiting New York for the first time was Lucy Hale.

#HIMYM S2E12

Emmitt Smith couldn't tell Barney the winner of the Super Bowl because he forgot the game was on.

What could be more important than football to @EmmittSmith22?

"Dance, my friend. Dance."

#HIMYM S2E14

Oh, it's just Barney meeting his "dad" Bob Barker on the @PriceIsRight.

#HIMYM S2E20

Who won the breakup:

Robin with Enrique Iglesias or Ted with Mandy Moore?

#HIMYM S3E1

Danica McKellar is back and this time she brought her sorority sister Busy Philipps.

#HIMYM S3E3

Abigail Spencer's BlahBlah dated Ted and gave Barney an opportunity to explain the Hot/Crazy scale.

#HIMYM S3E5

John Cho convinced Marshall to work for a law firm representing the worst people in the world.

#HIMYM S3E6

Oh. My. God.

Janice from Friends was Marshall and Lily's real estate agent.

#HIMYM S3E7

The Victoria's Secret Fashion Show after-party should've been Barney's Super Bowl, but he was dealing with a case of the yips.

#HIMYM S3E10

Ted spent St. Patrick's Day at the same club as The Mother, but they didn't meet each other.

He was busy stealing bottles of champagne with Vanessa Lachey.

#HIMYM S3E12

Ted took Sarah Chalke on a two-minute date, but that didn't stop her receptionist -- Britney Spears -- from crushing on him.

#HIMYM S3E13

If you want to get screamed at you Better Call Artillery Arthur.

Bob Odenkirk was so harsh he made Marshall cry.

#HIMYM S3E15

How do you follow up "Let's Go To The Mall"?

With "Sandcastles in the Sand", obviously.

And you have James Van Der Beek, Tiffany and Alan Thicke in the video.

#HIMYM S3E16

Boom! Will Forte was Barney's replacement wingman Randy.

#HIMYM S3E18

Larry Wilmore was a vet that accidentally discovered dogs are mesmerized by Lily's paintings.

#HIMYM S3E19

REEG!

Regis Philbin joined the search for the elusive best burger in New York City .

#HIMYM S4E2