Clark is the official team mascot of Major League Baseball's Chicago Cubs.

[1] He was introduced that day at the Advocate Illinois Masonic Medical Center's pediatric developmental center along with some of the Cubs' top prospects such as number one draft pick Kris Bryant and Albert Almora, Jorge Soler, Mike Olt and Eric Jokisch.

[1] According to the Cubs' press release, Clark is a response to fan demands (expressed via surveys and interviews)[3] for more kid-friendly elements at Wrigley Field Cubs games to keep pace with games in other cities that have more to offer youth fans.

[4] According to the Cubs, the fictional character Clark is descended from Joa, the franchise's original live Bears mascot in 1916.

According to the various stories "The mascot also will greet fans at Wrigley Field before and during games, as well as assist kids in running the bases on Family Sundays.