Teagan Croft as Jessica Watson

Cliff Curtis as Ben Bryant

Alyla Browne as Young Jessica

Josh Lawson as Roger Watson

Anna Paquin as Julie Watson

Bridget Webb as Emily Watson

Stacy Clausen as Tom Watson

Todd Lasance as Craig Atherton

Josephine Flynn as Reporter #1

Alice Tate as Georgina Bauer

Ling Cooper Tang as Susie the News Presenter

Shanyn Asmar as Female Politician

Tomoka Tsuyuki as Japanese News Presenter

Joey Vieira as American News Presenter

Justin Gerardin as French News Presenter

Jessica Watson as Self (archive footage) (uncredited)

Freya Callaghan as Young Emily

Chris Hillier as Instructor

Vivien Turner as Hannah Watson

Nikhil Singh as Reporter #2

Liam Wallace as Young Tom

Molly Belle Wright as Young Hannah

Allie Anderson as American Female Boxer

Elliott Ng as Chinese Hipster Man

Pauline Davies as Older Scottish Woman

Joy Mirembe as Kenyan Blog Girl

Aarush Amith as Indian Blog Boy

Stefany Baumann as Kindy Teacher

Charlotte Marquis as Kindy Kid

Olivia Marquis as Kindy Kid

Frances McGrady as Kindy Kid

Moses McGrady as Kindy Kid

Bowie Ottersbach Spillane as Kindy Kid

Charlie Rose Lasance as Kindy Kid

Eric Williams as Kindy Kid

James McGrady as James - TV Weatherman

Luke O'Neill as Kevin Rudd