[citation needed] On the club level, Kasatonov played for SKA Leningrad, CSKA Moscow, New Jersey Devils, Mighty Ducks of Anaheim, St. Louis Blues, and Boston Bruins.

Following a shoulder injury in an American Hockey League (AHL) game for the Providence Bruins in 1996, Kasatonov retired from the NHL and returned to play one last season for his former club CSKA Moscow.

The severity of the injury led Kasatonov to end his playing career, and he returned to New Jersey to settle down with his wife and son.

[citation needed] In 1998, Kasatonov was the general manager of the Russian Olympic Team that captured the silver medal in Nagano.

In 2011–12, Kasatonov became the vice president and general manager of SKA Saint Petersburg of the Kontinental Hockey League, the first club that he played for in the Soviet Union.