The Matrix legend also linked his love for comic books to his "nerdy" side as a child after Kimmel suggested that he was a nerd.
"I might've lost my nerd card when I got older because when I was younger — I was pretty freaking nerdy with the comics," Reeves said.
Kimmel eventually made another point on the show and said that because Reeves is now in his 50s, he's really a "nerd."
"Alright, man, I'll be a nerd!" a laughing Reeves admitted.
Speculation circulated about Reeves joining the Marvel Universe in 2019 when Marvel Studios boss Kevin Feige hinted at the acclaimed actor playing in a Marvel film when he figured out the "right way to do it," ComicBook.com reported.
Reeves, who is Canadian, also spoke about his decision to move from Toronto and his plans to become a US citizen, which is something he is interested in.
"Absolutely. Yeah, man, why not?" the actor said, before quipping that he would send President Joe Biden a copy of Reeves' comic book, BRZRKR, in an attempt to speed up his naturalization process.
The 12-issue comic book series, published in March 2021, was written by Reeves and chronicled the story of Berzerker, an immortal warrior born 80,000 years ago who fights his way through the ages.
And in 2021, Netflix announced that it's making a movie and anime series based on the Reeves BRZRKR comic, where the actor will play a significant role in both the film and series. A release date hasn't been revealed as of yet.
\u201cExciting news! Netflix is developing a live action film AND follow-up anime series based on Keanu Reeves\u2019 BRZRKR, a brutally epic saga about an immortal warrior\u2019s 80,000 year fight through the ages. Reeves will produce and star in the film, and voice the anime.\u201d