#3 Crash Holly
Crash Holly had a moderately successful run with WWE, when you consider he was a man of small stature in the 'land of the giants'. Crash was a WWE European Champion, Light Heavyweight Champion, Tag Team Champion and 22 time Hardcore Champion. He will be best remembered for his 24/7 rule Hardcore Championship antics.
Following his release from WWE in June 2003, Crash began working for TNA the following month. Crash debuted as 'Mad Mikey', a character that was simply mad at many things. He had a different entrance video every week, explaining why he was mad about things to do with his opponents. He didn't win many matches during his time with TNA and parted ways with the company at the beginning of October.
Sadly, Crash committed suicide the following month. He had been living with Steven Richards at the time. It is believed he killed himself over his pending divorce.