Greven (as Waldemar Dalquist)
Klara Edlund (as Julia Caesar)
Gurkan
Amalia Blomkvist
Åke Larsson
Elsa Edlund
Borstis (as Eric Abrahamson)
Detective Göransson
Beggar Student (uncredited)
Drum Player (uncredited)
Lookout at the Burglary (uncredited)
Customer (uncredited)
Engström (uncredited)
Man at the Auction (uncredited)
Gentleman (uncredited)
Ernst Berglund (uncredited)
'Lorden' (uncredited)
Mrs. Andersson (uncredited)
Man (uncredited)
Fish Customer (uncredited)
A police inspector tracks a notorious jewel thief, 'Diamond-Lasse,' to a hotel filled with eccentrics.
