Olsenbanden jr. går under vann

Aksel Støren Aschjem

Egon

Lars Berteig Andersen

Benny

Thomas Engeset

Kjell

Jakob Schøyen Andersen

Dynamitt-Harry

Julia Charlotte Geitvik

Valborg

Karoline Aagaard Gamlund

Ingrid

Halvor Borgen Lindstad

Herman

Bastian Hafr

Biffen

Benjamin Lønne Røsler

Jonny

Raymond Henriksen

Knut

Lasse Kolstad

Barnehjemsbestyrer Bollerud

Hege Schøyen

Ursula Wasserschmidt

Finn Schau

Bang-Johansen

Jan Grønli

Major Schultze

Sigmund Sæverud

Ingeniør Jørgensen

Anders Hatlo

Politioverbetjent Hermansen

Johannes Joner

Politiførstebetjent Holm

Kari Ann Grønsund

Gudrun

Kim Magnusson

Executive Producer

Kjell Vassdal

Director of Photography

Bent Fabricius-Bjerre

Original Music Composer

Sverre Holm

Writer

Lars Mering

Writer

Anne-Marie Olesen

Writer

Arne Lindtner Næss

Director, Writer

Ellen Andreassen Jensen

Costume Design

Martin Gant

Production Design

Helge Billing

Editor

Rune H. Trondsen

Producer

Else-Marie Stolt-Nielsen

Line Producer