Tony Alcantar

Luis Sosa (voice)

Michael Benyaer

Sammy Sosa(voice)

Philip Maurice Hayes

Mark McGwire / Politician (voice)

Saffron Henderson

Raquel Sosa / Magalise Sosa (voice)

Paul Dobson

Omar Minaya / Domingo / Chicago Cubs' Assistant / Bill Clinton(voice)

Michael Dobson

St. Louis Cardinals' Announcer (voice)

Aaron Joseph

Luis Sosa as a Child (voice)

David Kaye

Male Reporter / Chicago Cubs' Play-by-Play Announcer / Second Reporter (voice)

Richard Newman

Chicago White Sox's Manager / Award Host (voice)

Scott McNeil

Play-by-play Announcer / Texas Rangers' Catcher (voice)

Zahf Paroo

Additional Voices (voice)

Tonjha Richardson

Marta (voice)

Alvin Sanders

Coach Billy Williams / Minor League Umpire / Chicago White Sox's Play-by-play Announcer (voice)

Brad Swaile

Sammy Sosa as a teenager / Child Fan #2 (voice)

Francisco Trujillo Avalos-Davidson

Juan Bautista Montero (voice)

Cathy Weseluck

The Sosa Family's Sister / Female Reporter / Third Reporter / Keysha Sosa (voice)

Dale Wilson

Jim Riggleman / Jeff Pentland / Sports Anchor / First Reporter (voice)

Sammy Sosa

Self (archive footage)

Tarik Batal

Additional Voices (voice)

Doron Bell

Additional Voices (voice)

Brent Chapman

Additional Voices (voice)

Neil Denis

Additional Voices (voice)