Marcel Barthel is a German professional wrestler signed with WWE. He is a former two-time NXT Tag Team Champion.
In 2009, Barthel made his wrestling debut at WXW at the age of 20. He wrestled as Axel Dieter and won several championships and matches during his time in WXW and Progress before signing with WWE.
In 2017, Barthel signed with WWE and began working for NXT. He spent the first year as an enhancement talent before pairing up with Fabian Aichner. In 2018, he formed a team with Aichner called European Union. By the end, they joined Imperium along with Walter and began working at NXT UK.
At World's Collide, Imperium defeated The Undisputed Era. During the Pandemic, they defeated Matt Riddle to win the NXT Tag Team Championship. After 100 days as champion, they lost the title to Breezango. In 2021, they defeated MSK and won their second NXT Tag Team Championship. At Stand and Deliver, they lost the title back to MSK.