#3.) Tenure in other promotions
While Jim Hart was known for and spent most of his time in the WWE, he also happened to appear for various other promotions. During his early tenure at Stampede Wrestling, the promotion’s working relationship with New Japan Pro Wrestling saw him get a taste of the Japanese style of wrestling. He made a few appearances between 1982 and 1984.
He even appeared for ECW in 1992 when it was still known as Eastern Championship Wrestling. Following that, he would return to New Japan Pro Wrestling for a few appearances including being a part of the G1 Climax.
He would even have a brief stint in WCW later that year too. Many years later in 2009, Jay Lethal had a legends open challenge in TNA, which Neidhart answered and won.
This means that Neidhart wrestled in all top wrestling promotions of his time. WWE, ECW, WCW, NJPW and TNA!