#3 Bray Wyatt
When Bray Wyatt first emerged on main roster WWE TV back in 2013, much like his time in NXT, he had the most interesting gimmick in WWE. Bray's Backwoods Cult leader gimmick, heavily inspired by cult classic film Cape Fear, had so many possibilities, but it will go down as a flop of poor booking for the most part.
After over 3 years of poor booking decisions and several bad tweaks to his gimmick, Bray bounced back in 2017 when he became WWE Champion at the Elimination Chamber event. The reign was short lived at just a month, but is still a notable credit. After feuding with Matt Hardy on RAW in early 2018, Bray turned face and formed a team with Matt upon his return to TV after being thrown into the Lake of Reincarnation in the Ultimate Deletion.
The duo won the WWE RAW Tag Team Championships at the Greatest Royal Rumble event, but lost them to the B-Team at Extreme Rules. After a rematch on RAW, both Bray and Matt Hardy were removed from TV following Matt's in-ring future coming into question. After just about 6 months of inactivity, Bray returned to action at the Starrcade event, although his match was left off the WWE Network version.
Bray's return at Starrcade was obviously not WWE's way of Bray returning to TV as he was not included on RAW the following Monday and remains inactive on TV as of this writing. I think the only thing that can save Bray today is returning to SmackDown as a heel, and possibly reforming the Wyatt Family, and definitely resuming his former Backwoods Cult leader gimmick. otherwise, he will soon be forgotten.