Chevy Chase taunted ‘National Lampoon’s Vacation’ co-star on set

Anthony Michael Hall is opening up about his time filming “National Lampoon’s Vacation” with Chevy Chase more than 40 years ago.

During a cast reunion at Fan Expo Chicago on Sunday, Aug. 17, the Rusty Griswold actor recalled how Chase (Clark Griswold) taunted him for hitting puberty between the end of filming and the reshoots six months later, per Entertainment Weekly.

“Puberty kicked in for me,” Hall, who was 14 at the time, began. “I was a foot taller and like a different kid.”

“Guess who pointed the s–t out right away and made me feel really good about it on set,” the “Reacher” star added while looking over at Chase.

But Hall’s behind-the-scenes story did not end there, because he also brought up an autograph the “Saturday Night Live” alum had signed for him when shooting on “Vacation” officially finished.

“I just remember the autograph you wrote me when we wrapped,” Hall, now 57, continued. “He goes, ‘To Anthony, you’re a regular Robby Benson.”

“And then it was also, ‘If you’re going blind, you’re doing it right,’” Hall added.

Dana Barron, meanwhile, brought up how the 81-year-old comedian also made fun of the “Breakfast Club” star for having pimples.

Barron, 59, portrayed daughter Audrey Griswold in “Vacation.”

“By the way, you forgot the pimples,” she said during the cast reunion. “Remember, Chevy mentioned all the pimples on your face.”

However, the “Sixteen Candles” actor doesn’t harbor any ill will toward his on-screen dad for all the teasing, and clarified as much toward the end of the reunion panel.

“This is why I love being your son for 40 years,” he concluded. “I love you.”

After “National Lampoon’s Vacation” in 1983, Hall went on to star in several John Hughes classics, including “Sixteen Candles” in 1984 and “The Breakfast Club” in 1985.

“Vacation” follows the Griswold family as they take a summer road trip to the fictional theme park Walley World, and the hijinks that ensue during their wild adventure.

Besides Chase, Hall and Barron, the cast was rounded out by Beverly D’Angelo, 73, who portrayed mom Ellen Griswold in the John Hughes-written, Harold Ramis-directed 1983 comedy.

Although both Chase and D’Angelo returned for the film’s sequel, “National Lampoon’s Christmas Vacation,” in 1989, Hall and Barron were replaced by Johnny Galecki and Juliette Lewis, respectively.

The reunion in Chicago included cast members from both “Vacation” films, and Chase later took to social media to express how much he enjoyed the event and linking back up with his former co-stars.

“Great time this past weekend in Chicago at [Fan Expo Chicago] with old friends and new ones,” he wrote on Instagram alongside a video from backstage.

The “Caddyshack” star is scheduled to hit the road once more for an eight-show tour celebrating “Christmas Vacation” from Oct. 29 to Dec. 18.