Robin Williams and Christopher Reeve
Robin and Christopher were roommates while studying at The Juilliard School of Drama in NYC back in the early '70s. They were the only students selected for the Advanced Program. In his 1998 autobiography, Still Me, the Superman star wrote, "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 track suit bottoms and talked a mile a minute." Sounds like Robin, all right!
The two remained friends well after college, and after the deaths of Christopher in 2004 and his wife, Dana, in 2006, Robin vowed to take care of their son, William. In the wake of Robin's own death in 2014, his children donated 87 of his bicycles, in support of the Challenged Athletes Foundation and the Christopher & Dana Reeve Foundation.