Werner Herzog plays the Villain?  
First of all: as far as Hollywood is concerned, Germans may be seconds to only the brits as villains, if at all. 
[Gerd Fröbe-voice]
 No really, Mr Bond? [/Gerd Fröbe-voice] 
Secondly: ermahgerd I keep forgetting how much I love that velvety voice.
Have you seen 'Geliebter Feind', his tribute/documentary to Klaus Kinski?
Herzog has the demeanor of a small-town Gymnasium teacher, but by the time he admits to that one night where he grabbed a gun & went to find Kinski, you start to have some 
serious questions about that harmless facade...
I mean... Kinski was obviously, 
literally howling, barking mad - but Herzog spent months in the jungle with that madman, and did it twice.