Billy Wiles started wrestling in ECW and later changed his name to Bilvis Wesley, an Elvis impersonator gimmick. Toward the end of ECW he dropped the costume side of Elvis, but he retained the name until ECW stopped running shows in early 2001.
He was trained at the Monster Factory in New Jersey and then joined ECW as part of the crew which built and took down the ring at shows; and he also served as a timekeeper. Wiles then had his first match at a house show in Massachusetts losing to Axl Rotten.
Prior to Wiles joining ECW, Mikey Whipwreck worked on the ring crew during ECW's "Eastern Championship Wrestling" era. He then became a wrestler and, ultimately, one of ECW's few "Triple Crown" title holders: Heavyweight championship, TV championship, and Tag Team championship.
During his time in ECW Wiles never held a title, but he was paired for some time with CW Anderson as part of the New Dangerous Alliance - managed by Lou E. Dangerously.
Wiles also wrestled the "dark match" at the company's last PPV event: Guilty As Charged 2001.
Here is more about him:
https://en.wikipedia.org/wiki/Billy_Wiles
https://www.ign.com/articles/2001/01/26/bill-alfonso-radio-interview-2
https://www.listennotes.com/podcasts/insiders-edge-a/ep-63-billy-wiles-fka-bilvis-DMGWvkfs-t4/
This older channel on YouTube evidently was Bill's, and he has lots of ECW content uploaded to it: https://www.youtube.com/@wildbillw/videos
This is his upload of the New Dangerous Alliance's last match: