Mark Zimmerman, better known by his alias MarkZ, is an American League of Legends sports commentator best known as an analyst for the North American League of Legends Championship Series (LCS). and former head analyst and assistant coach for Team Liquid. He was announced as a member of OfflineTV in July 2017, where he worked in production. In early 2018, Zimmerman temporarily left the group citing differences with management. He later returned in July 2018, working in production and management until late 2019.
MarkZ has been named the Commissioner of the LCS in North America in December of 2023