Diana Nyad

Annette Bening

Bonnie Stoll

Jodie Foster

John Bartlett

Rhys Ifans

John Bartlett

Rhys Ifans

Teenage Diana

Anna Harriette Pittman

Jon Rose

Garland Scott

Naomi

Erica Cho

Nico

Ethan Jones Romero

Angel Yanigahara

Jeena Yi

Luke Tipple

Luke Cosgrove

Dee Brady

Karly Rothenberg

Coach Jack Nelson

Eric T. Miller

Candace

Anne Marie Kempf

Elise

Carolyn McCormick

Aris Nyad

Johnny Solo

Dude

Marcos Diaz

Marcus-Diver

Marcus Young

Katie (Register Girl)

Samantha Gordon

Anna

Tisola Logan

Suzanne(as Acuña Báez Marcella)

Marcella Acuña Báez

Miguel

Hanler Rodriguez

Nina

Lilo Grunwald

Lucy

Harraka Eliana

Sam - Medic

Grace Subervi

Opposing Girl

Sophia Hernandez

Reporter Cuba

Elizabeth Chahin

Woman Swimmer

Katherine Klosterman

Paramedic

Mauricio Adrian

Taxi Driver

Toussaint Merionne

Nadia- Kayaker

Nadia Lorencz

Carolyn

Katherine Montes

Mia

Orpha Salimata

Jose Cuban Fisherman

Jose Mota Prestol

Coach Nelson's Assistant

Jake Jackson

St. Maarten Kid #1

Marina Vasarhelyi-Chin

Diana (age 5)

Pearl Darling

St. Maarten Kid #2

James Vasarhelyi-Chin

Diana (age 5)

Belle Darling

Bikini Shopping Girl

Lacey Newhard

Janitor(uncredited)

Marcos Sánchez

Commentator

Stephen Schnetzer

Trainer

Iván Oleaga

Female Cop

Melissa R. Stubbs

Director

Elizabeth Chai Vasarhelyi

Director

Jimmy Chin