Stan Lee loves all his Marvel movie cameos, but he called the one for X-Men: Apocalypse “different” from all the rest. Why? Because it featured him alongside his wife, Joan Lee, who died at the age of 93 on Thursday in Los Angeles.

In the film, directed by Bryan Singer, Joan was spotted as the ancient mutant Apocalypse (Oscar Isaac) launched the world’s nuclear missiles. She held tight to Stan as they and the rest of humanity watched what looked to be the end of civilization.

“When you go see the next X-Men movie when it comes out, and see my fantastic cameo, you will say, ‘I remember he told me about it here,'” Lee teased during a panel at San Diego Comic-Con in 2015 (via Business Insider). “It’s a different cameo in that it has one additional thing in it.”

Singer posted a behind-the-scenes video of their time shooting the cameo that features a touching moment between the couple. “I am so saddened by the passing of #joanlee wife of my dear friend #stanlee #marvel #xmen,” the filmmaker wrote. “I was blessed to know her and be able to shoot a brief cameo with her and Stan.”

I am so saddened by the passing of #joanlee wife of my dear friend #stanlee #marvel #xmen Etc. I was blessed to know her and be able to shoot a brief cameo with her and Stan. Thank you @greggsrandomness for shooting this clip.

A post shared by Bryan Singer (@bryanjaysinger) on Jul 6, 2017 at 8:02pm PDT

Gregg Schneider, who captured this moment on set, posted more images from production. “Stan and his wife Joan are the cutest most playful couple after being together 70 years, they both have 100 percent of their marbles, and are both so witty,” he recalled in post on Stan’s birthday in December.

Am sad. RIP Joan Lee. We have lost an amazing lady. I truly hope that Stan handles this as well he can, he is as strong and tough as any 94 year old man alive but she had been very sick for a while. I feel so thankful I had the privilege of spending a decent amount of time with her in the past 2.5 years, I live 400 feet from them. Such a classy, funny and brilliantly witty lady with the coolest English accent ever. What an awesome woman and an astoundingly long and loving life and marriage, 5 months short of 70 years. She was 95. Photo at Stan and Joan's house, late 2015. RIP, lovely lady. Photo taken by @bradleyj.herman #stantheman #joanlee #stanlee #xmen #xmenmovies #marvel #marvelcomics #marvelmovies #cameo #spiderman #doctorstrange #drstrange #ironman #fantasticfour #livinglegend #legendary #icon #iconic #comicbook #comicbooks #birdstreets #antman #hulk #incrediblehulk #jackfrost #daredevil #stanleecomikaze #lovelylady #classywoman #RIP

A post shared by Gregg Schneider (@greggsrandomness) on Jul 6, 2017 at 4:45pm PDT

Happy 94th! birthday to Mr. Stan Lee, a classy gentleman and true living icon. I have had the privilege of spending a decent amount of time with Stan and his wife on a number of occasions at his house- which is about 400 feet away from mine. A cool photo taken of us on one of my visits. Stan and his wife Joan are the cutest most playful couple after being together 70 years, they both have 100 percent of their marbles, and are both so witty. She is the "older woman", about 10 months older than him. She has the most wonderful classic British accent and tone and they are both as funny as can be, and play off each other. Stan's stories going back to the 1930's and the details he remembers are incredible. One can only hope to be half as together at their age. His creative mind and comic book characters he brought to life have brought joy and entertainment to millions. #stantheman #stanlee #xmen #xmenmovies #marvel #marvelcomics #marvelmovies #cameo #spiderman #doctorstrange #drstrange #ironman #fantasticfour #livinglegend #legendary #icon #iconic #comicbook #comicbooks #birdstreets #antman #hulk #incrediblehulk #jackfrost #electro #daredevil #stanleecomikaze #birthdayboy #deadpool

A post shared by Gregg Schneider (@greggsrandomness) on Dec 28, 2016 at 10:39am PST

Joan also performed voice roles in the Marvel animated series Spider-Man and Fantastic Four. The comic book company released a statement that read, “We lost a member of the Marvel family today and our thoughts and prayers go out to Stan and his daughter Joan in this difficult time.”