Dirch Passer as Mathisen, ejer af hotel "Skildpadden"

Ole Monty as S.P.R.F. Rodian, kriminalforfatter

Asbjørn Andersen as Stenbeck, Rodians forlægger

Marguerite Viby as Else Jessen, landsretssagfører

Preben Mahrt as Erik Jessen, landsretssagfører

Bodil Miller as Anna-Lisa, Rodians niece

Oscar Ljung as Kale Karlfeldt, Anna-Lisas forlovede

Johannes Marott as Viggo Frederiksen

Christian Jørgen Nielsen as Alfred Mogensen

Gunnar Bigum as Tjener 'Stoffer'

Hans Brenaa as Akrobatdanseren

Mogens Davidsen as Bartender Christiansen

Henry Nielsen as Nattevagt

Jens Kjeldby as

Paul Mourier as

Mimi Heinrich as

Holger Juul Hansen as

Alfred Wilken as

Mogens Brandt as Bankkunde

Tao Michaëlis as

Kjeld Petersen as Værtshusgæst

Per Wiking as