Hazel Grace Lancaster

Shailene Woodley

Lidewij Vliegenthart

Lotte Verbeek

Frannie Lancaster

Laura Dern

Augustus Waters

Ansel Elgort

Peter Van Houten

Willem Dafoe

Isaac

Nat Wolff

Patrick

Mike Birbiglia

Michael Lancaster

Sam Trammell

Dr. Maria

Ana Dela Cruz

Dr. Simmons

Randy Kovitz

Flight Attendant

Toni Saldana

Monica

Emily Peachey

Pai de Gus

David Whalen

Mãe de Gus

Milica Govich

Hostess

Allegra Carpenter

Monica's Mom

Emily Bach

Minister

Tim Hartman

Speaker #1 (Beth)

Bethany Leo

Speaker #2 (Alexis)

Alexis Hodges

Flight Attendant

Toni Saladna

Waiter

Jean Brassard

Young Girl (Alisa)

Carly Otte

Young Hazel

Lily Kenna

European

Silvio Wolf Busch

Support Group Member (Julie)

Viviana Cardenas

Speaker #3 (Sid)

Jordan Drexel

Speaker #4 (PJ)

PJ Rossotto

Gus' Leg Double

Tanner Boatwright

Coffee Shop Worker

Cheyenne Hurley

Giggling Girl

Jennifer Kline

Voice of Anne Frank

Carole Weyers

Anne Frank (voice)

Carol Weyers

Support Group

Lauren Blumenthal

Support Group

Nikki Lipinski

Support Group

Sebastian Dean

Support Group

Alexander Murph

Support Group

Taylor Dettore

Support Group

Josh Potter

Support Group

Steven Edmonds

Support Group

Cindy Zeng

Support Group

C.J. Evans

Voice Cast

Daniel Booko

Voice Cast

Jacqueline Pinol

Voice Cast

Sitara Attaie

Voice Cast

Jim Pirri

Voice Cast

Jean Gilpin

Voice Cast

Joey Richter

Voice Cast

Nicholas Guest

Voice Cast

Danielle Hartnett

Voice Cast

Matthew Wolf

Voice Cast

Dina Morrone

Dog Walker

Joe Fishel

Dog in Park

Richard C. Fishel