Ernesto Ruscio/Getty All About Joaquin Phoenix’s 4 Siblings: River, Rain, Liberty and Summer Rain and Joaquin are the younger siblings ... He was such a great older brother." ...

Rain Phoenix made a rare public appearance when she joined her younger brother, actor Joaquin Phoenix, at the premiere of his new film, Joker: Folie à Deux at the Venice Film Festival on Wednesday.

Joaquin Phoenix is ... year after they started dating. Phoenix and Mara later got engaged in 2019, and they welcomed a son named River — after Phoenix's late brother — in August of the ...