Young musician Zach Sobiech discovers his cancer has spread, leaving him just a few months to live. With limited time, he follows his dream and makes an album, unaware that it will soon be a viral music phenomenon.

• Zach Sobiech: Steffan Argus
• Sammy: Sabrina Carpenter
• Amy: Madison Iseman
• Laura Sobiech: Neve Campbell
• Rob Sobiech: Tom Everett Scott
• Mr. Weaver: Lil Rel Howery
• Grace Sobiech: Summer H. Howell
• Alli: Vivien Endicott Douglas
• Sam: Dylan Everett
• Jason Mraz: Jason Mraz
• Doctor: Tyrone Benskin
• Eli: Benjamin Roy
• Tess: Aida Yirga
• Hip Agent: Luis Oliva
• Janie: Morgana Mogent
• Mitch: Mitchell Kluesner
• CNN Reporter: Emily Baldoni
• Local Reporter: Yaani King Mondschein
• Oncologist: Mylène Dinh-Robic
• Producer: Sukhdev Benning
• Teen Girl: Emilia Martinez
• Male Bath Attendant: Frédéric Lalancette
• Male Bath Attendant: Clayton Kennedy
• Female Bath Attendant: Sienna Dahlen
• Female Bath Attendant: Joanne Degand
• Stagehand: Michelle Bensimon

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• Music: Brian Tyler
• Production Design: Michele Laliberte
• Producer: Andrew Lazar
• Story: Casey La Scala
• Producer: Justin Baldoni
• Sound Mixer: Simon Poudrette
• Stunt Coordinator: Patrick Kerton
• Casting: Rich Delia
• Director of Photography: Ben Kutchins
• Costume Design: Simonetta Mariano
• Art Direction: Philippe Lord
• Art Direction: Vincent Gingras-Liberali
• Art Direction: Mathieu Giguère
• Story: Kara Holden
• Unit Production Manager: Wendy Williams
• Set Decoration: José Varela
• Production Manager: Alain Gagnon
• Set Designer: Guy Pigeon
• Set Designer: Céline Lampron
• Editor: Brett M. Reed
• Executive Producer: Cate Adams
• Stunts: Tyler Hall
• Costume Design: Rachel Sage Kunin
• First Assistant Director: Bethan Mowat
• Co-Producer: Benjamin Simpson
• Book: Laura Sobiech
• Set Decoration: Eve Boulonne
• Story: Patrick Kopka
• Associate Producer: Sam Baldoni
• Executive Producer: Steve Sarowitz
• Music Supervisor: Jordan Carroll
• Co-Producer: Ahmed Musiol

Credits: TheMovieDb.