10 forgotten mid-card WWE returns 

#8 Haku: 2001

Here comes the WCW Hardcore Champion

Known as possibly the toughest wrestler in history, the former Meng had successful stints with WWE from 1986 til 1992 and WCW, from 1994 til 2001, as well as time spent in all over Mexico and Japan.

While he was the reigning WCW Hardcore Champion in 2001, Haku made a very surprising return to the WWE in the 2001 Royal Rumble match. WCW would never mention he or the Hardcore Championship ever again. After the Rumble, he formed a tag team with Rikishi, but the team did not last long due to Rikishi turning face and was left to wrestle on the lower card shows before being released from his contract in July.