That’s not to say they haven’t evolved a great deal over the decades, and Star Wars: The Rise of Skywalker will bring us the newest iteration of the Stormtrooper, the Sith Trooper.
The white-clad soldiers were some of the first characters we ever saw in Star Wars: A New Hope and since then the characters have always been a part of Star Wars.
Stormtroopers have been a part of the Star Wars franchise since the beginning.