Erwin Alois Robert Leder is an Austrian actor, born in St. Pölten, Lower Austria. He is best known for his role as Chief Mechanic Johann in Das Boot, a 1981 feature film directed by Wolfgang Petersen about a mission of one WWII U-Boat and its crew.

In 2003, Leder appeared as the Lycan scientist Singe in the Gothic horror/action film Underworld.


  • Leder became so immersed in the scene where Singe tells Selene and the Vampire Elder Viktor of the Lycans' plans that he made several of what director Len Wiseman termed "strange sounds", implied to be farts. Actress Kate Beckinsale jumped into the conversation to ensure everyone that the sounds were not coming from her.

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Major Actors
Kate Beckinsale - Scott Speedman - Shane Brolly - Bill Nighy - Sophia Myles - Michael Sheen - Kevin Grevioux
Other Actors
Zita Görög - Erwin Leder - Scott McElroy - Richard Cetrone - Mike Mukatis - Wentworth Miller - Jázmin Dammak - Todd Schneider - Dennis J. Kozeluh - Robbie Gee - Sándor Bolla - Hank Amos - Danny McBride - Ildikó Kovács - Judit Kuchta - Attila Pinke
Len Wiseman
Gary Lucchesi - Robert Bernacchi - Tom Rosenberg
Danny McBride - Kevin Grevioux - Len Wiseman
Paul Haslinger