Isi & Ossi

Lisa Vicari

as Isi

Dennis Mojen

as Ossi

Lisa Hagmeister

as Betty Markowski

Ernst Stötzner

as Grandpa

Christina Hecke

as Claudia Voigt

Hans-Jochen Wagner

as Manfred Voigt

Walid Al-Atiyat

as Tschünni

Zoë Straub

as Camilla

Bettina Hoppe

as Kerstin Wiese

Saladin Dellers

as Marf

Susanna Capurso

as Gabriella Rizzi

André Eisermann

as Spasti

Albert Kitzl

as Klaus

Nayla Sophie Brehmer

as Isi (4)

Livia Renner

as Camilla (4)

Gabriel Grabas

as Ossi (7)

Nova Amondson

as Isi (10)

Franz Ferdinand Krause

as Ossi (10)

Jonas Spaeth

as Tschünni (10, 12)

Mila Zellmer

as Isi (12)

Jeremiah Kisters

as Ossi (12)

Pegah Ferydoni

as Drunk Teacher

Johanna Eiworth

as Chef

Erik Hansen

as Volker

Ralf Dittrich

as Gas Station Customer

Natalie Schaaf

as Fitness Trainer

Langston Uibel

as Finn

Julia Wulf

as Marlene

Louis Nitsche

as Ferdy

David Gentner

as Kitchen Help

Tracey Grey

as Private Teacher

Nicolás Di Rago

as Santino Borges

Oliver Jaksch

as Cross-Eyed Guy

Timothy Alan Munt

as Inmate 1

Vitali Skrobot

as Inmate 2

Klaus Berchner

as Gallery Guest

Zino Gleich

as Battle Rap Judge

Michael Steiner

as Atomic Dick

Lissa-Johanna Volquartz

as Atomic Pussy

Christoph Pütthoff

as Financial Advisor

Inaam Al-Battat

as Tschünni's Mother

László Branko Breiding

as Rapper who dissed Grandpa

Dominikus Weileder

as Young Arms Dealer

Niklas Kinzel

as Yannis Vukovic

Jens Grunwald

as Boxing Referee

Ranja Bonalana

as Narrator (voice)

Matthias Schmidt

as Taxman