Ron Biles
Nellie Biles (as Tisha Campbell-Martin)
Adria Biles
Shanon
Aimee Boorman
Simone Biles
Young Simone
Young Adria
Martha Karolyi
Marissa
Ashley Biles
Ron Biles II
Adam Biles
Tevin Biles
Becca
Ms. Doris
Aly
Social Worker
Candace
Gloria
Mr. Andrews (as Tim Beckman)
Sharon
Jane Boorman
Jill
Judge
Gabby Douglas
Kyla Ross
Madison Kocian
Laurie Hernandez (as Kimberly Amanda Gonzales)
Gymnast #1
Gymnast #2
Young Gymnast (as Ava Sleeth)
Coach
Teen Boy #1
Teen Boy #2
Broadcaster #1
Broadcaster #2
Doctor
Cute College Boy
US Coach
Olympic Swimmer
Gymnast (uncredited)
Special Skills / Gymnast (uncredited)
Spectator (uncredited)
Olympic Spectator (uncredited)
Gymnastics Event Guest (uncredited)