#9 Daivari
Daivari wrested in WWE between 2004 and 2007 before being released from his contract. He was brought back in 2011 but only for a dark match before being released again, and was then brought back again between 2018-2020 as a producer.
Having wrestled for TNA in 2008-2009, Daivari made his return to the company in 2020 after taking part in the aforementioned Call Your Shot Gauntlet match that was eventually won by Rhino. However, it was Brian Myers who would eliminate Daivari.
Daivari is still signed with IMPACT Wrestling.
#8 Madman Fulton formerly known in WWE as Sawyer Fulton
Madman Fulton was in WWE for five years and was an original member of the stable SAnitY led by Eric Young. However, after suffering an injury he was eventually replaced in the stable without explanation by Killian Dain, before being released from the company.
Fulton then joined IMPACT Wrestling in 2019 where he initially joined the stable oVe as an enforcer for them, before he'd eventually go on to align himself with Ace Austin and act as an enforcer for him.
#7 Former WWE Cruiserweight Champion Rich Swann
Rich Swann was an extremely promising talent in WWE with his aerial ability and high-flying technicality, but an unfortunate incident in his personal life ultimately led to the former Cruiserweight Champion's release from the company.
A few months after his release Rich Swann would debut for IMPACT Wrestling in June 2018 and it didn't take the wrestler long to capture gold, claiming the X-Division Championship.
More recently, IMPACT Wrestling built Swann up as a top babyface and main event star, eventually leading to him capturing the Unified IMPACT World Championship, which he has subsequently lost to Kenny Omega.