The one thing that's tragically missing from "Quantumania" is indeed Luis, the shining light and enthusiastic explanation machine of the first two "Ant-Man" movies. Yes, granted, technically T.I.'s Dave and David Dastmalchian's Kurt are also conspicuously absent, but let's face it, Luis is the one who really hurts — besides, Dastmalchian does portray the slime humanoid Veb in the movie, and has plenty of juicy lines and comedic moments.
According to "Quantumania" director Peyton Reed, Luis was unfortunately never in the cards for the movie. "There were no versions of this movie [with Luis]," Reed told The Hollywood Reporter. "There are a lot of characters in the movie. We obviously have our Lang, van Dyne and Pym family, but then we also introduced Kang, MODOK and all of our Freedom Fighter characters. So we had to make decisions early on about what stories we could tell and what stories we couldn't tell. I love those characters. They were really, really fun and part of the Lang family, but as we got further and further into [development] and knew we wanted to bring the family into the Quantum Realm pretty early in the movie, it just didn't make sense [to include Luis and co.]."
While it's true that "Quantumania" is absolutely packed with characters, the decision to omit Luis seems somewhat difficult to justify when you take into account the fact that the movie begins and ends with lengthy recap narration scenes that are straight from the character's playbook — and that would no doubt have been infinitely more fun with Luis' characteristically manic storytelling style. Just imagine him narrating Scott's end-of-the-movie freakout when he remembers the Quantum Realm Kang's warning that he may have doomed existence by allowing the remaining Kangs run unopposed across the Multiverse. We were deprived of that, yet had to sit through Korg (Taika Waititi) narrating "Thor: Love and Thunder?" A travesty, indeed.