You'll Crack Up at the Grimm Cast's Throwback Halloween Costumes

Season five of NBC's Grimm returns to the small screen just in time for Halloween this Friday! We already got a glimpse at the cast living it up during a Montana getaway in September, and now we're taking a look back at some of their best Halloween costumes. Scroll through to see the impressive outfits, and then make sure to check out more than 250 celebrity Halloween costume ideas to help you figure out what to wear on the big night.

Bitsie Tulloch as Viagra
Courtesy Bitsie Tulloch

Bitsie Tulloch as Viagra

Bitsie told us how she came about her original look back in 2007: "I was busy shooting a TV series called Quarterlife, and my friends in Maroon 5 have an epic Halloween party every year. I was dying to go but was super slammed with work and didn't have time to put an outfit together. I went to work on Halloween with a blue wig and that was it, and asked the wardrobe department to throw together something — anything — that incorporated the blue wig, since I'd be going straight from set to the party. I was slightly mortified (and amused!) when I realized they had me dressed in head-to-toe blue, had printed the Viagra logo on my (skimpy) clothing, and — the kicker — had put a fake Viagra label on a pill bottle, filled with mini blue M&M's. I loved how cheeky my outfit was and was impressed at their ingenuity given so little time!"

Courtesy Bitsie Tulloch

Bitsie posed with her pal, Maroon 5 pianist Jesse Carmichael, who was dressed as Mel Gibson in Braveheart.

Bree Turner as Steve Prefontaine
Courtesy Bree Turner

Bree Turner as Steve Prefontaine

Long before Bree started filming Grimm in Portland, she channeled Oregon running legend Steve "Pre" Prefontaine for Halloween — '70s mustache and all! She likes to think the costume choice was "foreshadowing of my future Pacific NW love affair."

Courtesy Bree Turner

Courtesy Bree Turner

Jacqueline Toboni as a Pink Power Ranger
Courtesy Jacqueline Toboni

Jacqueline Toboni as a Pink Power Ranger

Courtesy Jacqueline Toboni