* As filming started on Season 3 of [[The Boys]] in February 2021, it was announced that [https://variety.com/2021/tv/news/supernatural-writers-producers-the-boys-season-4-1234916644/ a number of ''Supernatural'' alumni are joining the series]. In addition to Jensen, they include writer [[Meredith Glynn]] who is fresh off ''Supernatural'', and [[David Reed]] who left our show in 2012and has since worked on Revolution, Aquarius and The Magicians. They will both join the series as who joins as Executive Producers. [[Jim Michaels]] who was a co-executive producer based in Vancouver for ''Supernatural'' heads to Toronto to take on the same role. Already on-board alongside [[Eric Kripke]] are Executive Producer and director [[Phil Sgriccia]] who left ''Supernatural'' at the end of Season 14, and composer [[Christopher Lennertz]]. It is rumored that Jim Michaels was sacked from the series a couple of months into filming.
From late 2020, Jensen took at least six trips to Los Angeles for fittings, as the costume for Soldier Boy was constructed. [https://twitter.com/EW/status/1384258000999706626 In an interview with Entertainment Weekly], Jensen mentioned that. coincidentally, he would be wearing the same boots as Soldier Boy that Dean Winchester wore although a different colour. The costume was from a concept by Greg Hopwood and designed and made by The suit was designed by Laura Jean Shannon and concept artist Greg Hopwood, and Shannon explained their thinking: "Soldier Boy is the original bad ass. Our goal was to highlight a bygone era of overt masculinity and grit. With that pedigree we dove headfirst into baking in an all-American quality grounded in a military soldier’s practicality with a heavy dose of old school cowboy swagger. We knew that the actor had to have Steve McQueen looks and chops with a John Wayne attitude, luckily Jensen Ackles embodies all of that."