Despite being regularly funny, "How I Met Your Mother" also seems to always have hot actresses on it, be they regulars on the show, or just pretty women who are on for one or two episodes. Hot girls are often a dime a dozen on major network television shows these days because, as the old adage goes, "sex sells." But even a good show could use a little boost of sexuality, not that we're complaining. Below is a list of the most gorgeous women on the hit show, so keep your eye out for them while you're laughing!.

Cobie Smulders. The pretty leading lady Cobie Smulders plays Robin Scherbatsky on "How I Met Your Mother," and has been in every episode of the long running CBS show. She was also on Showtime's "The L Word," and has recently landed a role on the film "The Avengers" (the remake, not the goofy old one). In other words, you will probably be seeing a lot more of Cobie Smulders in the near future, which is good news for all of our eyes. But she's best-loved for her current gig, so be sure to go out of your way to catch a few glimpses of her!

Allison Hannigan. Cute to the tenth power, Allison Hannigan plays Lily Aldrin on "How I Met Your Mother." She first made a name for herself as the "bandcamp" girl on "American Pie" in the late 90's and then had a co-starring role on the television series "Buffy the Vampire Slayer" as Willow, sending boys everywhere a-flutter when she popped up on screen. But instead of sitting through old Buffy re-runs and interminable "American Pie" sequels, tune in to see her at her "girl-next-door" best on "How I Met Your Mother." She may have grown up, but she's still as cute as ever!

Eva Amurri. She was only in one episode called "The Playbook," but Eva Amuuri stuck in many people's minds as one of the hottest girls to ever grace "How I Met Your Mother." You can see her in bit parts in a variety of other shows and films, from "Californication" to "The Education of Charlie Banks." However, the best look you will get at her is in this show, or maybe in a few magazine spreads. She's too much for even Barney to handle, and that's saying a lot!

Erinn Bartlett. Another one-time actress on "How I Met Your Mother" is Erinn Bartlett, but she is shockingly attractive in the episode "Mary the Paralegal." She played a regular pretty girl throughout television shows and films over the last decade. Unfortunately, it seems she may have called it quits to Hollywood. Or just may not have been cast in things as of late. But do yourself a favor and catch her episode in syndication, because a woman this gorgeous deserves to be sought out.

Deanna Russo. Appearing in one episode called "Little Boys," Deanna Russo made a mark on everyone who watched "How I Met Your Mother" with her beauty. Many people also recognize her from her starring turn in the not-so-good NBC remake of "Night Rider." However, she is a talented (and gorgeous) actress who will probably appear again in a great show, someday. She's appeared in several photo shoots that sure to get your pulse racing, but if you want to see her acting talents at work, you'd do well to catch her on a re-run of "How I Met Your Mother."