‘I Know What You Did Last Summer’ costume designer on Fisherman’s new look, Easter egg

New sequel, new hook, new look.

The Fisherman is back to terrorize another group of friends in the latest “I Know What You Did Last Summer” sequel, and with him is a fresh outfit to torment one more generation of scary movie fans.

Mari-An Ceo, the costume designer behind the slasher villain’s new look, has opened up about how this movie’s Fisherman costume differs from the one featured in the 1997 original.

“The original one was basically made out of just vinyl, which cinematically looked great in the movie from 1997,” Ceo exclusively told The Post. “But of course, we’ve got to make everything much more intense now with how they shoot, with the new digital cameras and whatnot.”

“So we actually went through quite a process of testing different fabrics,” she shared. “The fabric we ended up with was a wax cotton, and we painted quite a bit into it to make it look like it was wet.”

After doing several camera tests with director Jennifer Kaytin Robinson and cinematographer Elisha Christian, Ceo and her team created the slicker seen on-screen in the new “IKWYDLS.”

While the original Fisherman wore a standard yellow slicker and hat made of vinyl, the new version features a darker raincoat and hood made of wax cotton.

“So it was actually a lot of work just to get that jacket to where it was that they really loved filming it, and it had to move and do all the special things that you need a costume to do, especially in a movie like this,” Ceo added.

Surprisingly, Ceo revealed that the new movie was not initially going to include a redesign for the Fisherman’s costume.

“Funny enough, we weren’t going to redesign it in the beginning,” she shared. “And then as we were looking at it on the actor, and it’s moving, Jen’s like, ‘I don’t know. Maybe we can do something else?’ And we all sort of thought that.”

After playing around with different concepts regarding how the costume could look, they came up with one new idea in particular.

“So it became this whole thing,” Ceo continued. “Like, you know, maybe it’s a hood, maybe it’s this, and we had all these different ideas. I was like, let’s try it.”

“We just kind of landed on the hood, which was funny,” she added. “So that was the redesign for the new movie.”

Besides a darker and more menacing new costume, the Fisherman in the latest “IKWYDLS” is also armed with an upgraded ice hook to torture and kill his victims.

Like the old Fisherman slicker and the new redesigned one, the new ice hook has some major differences compared to the original.

“It was basically the same hook, but they made it look a little more dangerous,” Ceo explained. “Props and the art department were also incredible on this. They had to make it a little more dangerous and pointy, but also make it safe.”

“With anything that we do, they had many of them doing different things for close-ups and pursuits and all that,” she added.

Starring Madelyn Cline (Danica Richards), Chase Sui Wonders (Ava Brucks), Jonah Hauer-King (Milo Griffin), Tyriq Withers (Teddy Spencer), Sarah Pidgeon (Stevie Ward) and Gabbriette Bechtel (Tyler Trevino), the new “IKWYDLS” follows five friends one year after they cover up their involvement in a deadly car accident.

The new sequel includes some familiar faces from the original, including Freddie Prinze Jr. as Ray Bronson and Jennifer Love Hewitt as Julie James, who help the new group fight back against the vengeful Fisherman.

Besides the direct connections between the 1997 original and the 2025 sequel, Ceo revealed that she and her team included some throwbacks to the first film by way of the costumes worn by the new cast members.

“I did watch the original, of course, before doing it,” she shared. “And we did want to do a few throwbacks, like Jennifer Love Hewitt in the original wore these overalls. And so we ended up doing overalls on Sarah Pidgeon in the finale, which is really fun.”

“We tried to do a few homages from the original,” Ceo told The Post. “Their clothes were just based on the characters for this. But we did reference some things from the original for what we did here.”

As for the movie’s costume design itself, Ceo said that she was proud of how it all ended up looking on the big screen.

“We put a lot of thought and effort into it,” she said. “I liked how everybody wore it, and they were all super happy and comfortable in their clothes.”

“I’m proud of the costumes, for sure, and I’m proud of the crew, the cast and everybody involved in it.”