sharpshooters ruth negga, tessa thompson, jasmine cephas-jones, or kylie bunbry as this girl's older sister, daveed diggs or kid cudi for her brother, emmy raver-lampman, phillipa soo, leslie odom jr, ariana debose as misc. space station staff. the cast of julie and the phantoms, jake gyllenhaal, sebastian stan, hunter schafer, jacob elordi, and angus cloud.