Robin William was born on July 21, 1951 in Chicago, IL and attended Claremont Men's College and College of Marin before making the move to New York and enrolling in Juilliard (via Biography). 

Meanwhile, Christopher Reeve knew the New York City scene as that's where he was born on September 25, 1952. Before Juilliard, he studied in the Ivy League at Cornell University (via Biography). When they both made it to the Juilliard, they were the only two students in their class in the Advanced Program.

In his 1998 autobiography "Still Me," Reeve described his first meeting with the eccentric Williams, and his description of Williams seems very on-brand for the late actor and comedian. "The first person I met at Juilliard was the other advanced student, a short, stocky, long-haired fellow from Marin County, CA, who wore tie-dyed shirts with tracksuit bottoms and talked a mile a minute," (via Pop Sugar)