River Phoenix, 23 Years Old
River Phoenix, brother of actor Joaquin Phoenix, got his start in the hit adolescent blockbuster "Stand By Me." After leaning into more adult roles as he got older, fame took his life by storm. He died of an accidental overdose at the age of 23 outside of Johnny Depp's Viper Room in Hollywood. He is rarely acknowledged publically by his brother, but earlier this year while speaking about his new film, "The Joker," Joaquin thanked River to the press for the first time ever.