Reed also mentioned that there had been talks of making a standalone adventure with Hank Pym as Ant-Man, possibly including the original opening to Ant-Man featuring Jordi Mollà which was cut from the final film. The following month, Randall Park joined the cast as Jimmy Woo, [28] and Walton Goggins was cast in an undisclosed role.

Michelle Pfeiffer was de-aged to portray young Janet van Dyne, with Hayley Lovitt acting as a reference double.Cannavale stated that Rudd and McKay convinced him to join the film during the rewriting process before Marvel approached him, saying, "They sort of pumped [my] part up a bit. I was really proud of what we did, I really thought we put some amazing stuff in there and built on an already strong script from Edgar Wright and sort of just enhanced some stuff. Eric Pearson, a member of Marvel Studios' writing program who had written the Marvel One-Shot films, did uncredited work on the film as well, [146] scripting the strip club scene and Stan Lee's cameo. This song still receives considerable airplay on country stations nationwide and is spun often at country dance clubs and honky-tonks.

Charles Gant of The Guardian and Screen International noted, "The worry for film distributors is that audiences will be caught up in the tournament. Additional filming took place in San Francisco in September 2017, [74] in Savannah, Georgia in late October, [75] and in Hawaii. Pym reluctantly takes Hope and Lang to visit his estranged former partner Bill Foster, who gives them a way to locate the lab. Director Peyton Reed compared Lang to George Clooney's character Danny Ocean from Ocean's Eleven, saying, "He's a guy trying to create a new life for himself and find redemption.

Sonny Burch's team of men includes Divian Ladwa as Uzman, Goran Kostić as Anitolov, and Rob Archer as Knox, while Sean Kleier portrays Stoltz, Burch's FBI inside man and Jimmy Woo's subordinate.