Can acting be cure to stuttering?

Can acting be cure to stuttering? So, I've heard that actors like Samuel L. Jackson, Bruce Willis etc. said that they ''cured'' their stuttering though acting. I renember Samuel talking how he applied his acting skills to his everyday life and it worked. So, I decided to try this out. I didn't go in public and pretend I'm a villain in a superheroe movie, but I played a video game that requires you to talk (CS:GO). What I did is I talked in a really goofy voice, kinda like Elmo or something. As I opened my mouth there were no stuttering whatsoever! My speech was as fluent as it can be. I honestly believe if I practice imitating someone's speech I could beat this once and forever.