Show Actors/tress image

Hello,
it is possible show actor or actress image as folder image when navigate trought movies actor list?
Actually I see same picture folder for all actors but I know that XBMC save in "%appdata%\XBMC\userdata\Thumbnails" all photos with names like 'bea0974d.tbn' , 'b1f48367.tbn' ...

Let me know.
Fil.

[zip]

normally most renderers don't show thumbnails for folders.... for hose that do it might be possible once the folder thumbnail functionality has been implemented