Ok, my understanding of the issue has changed, miscommunication and in all probably a bit of the language issue. I'm still not 100% understanding, but this is what I think you want (correct me if I'm not communicating properly to your understanding). You want to enter the TV button from the home page, then when your TV series list shows, with one TV show in focus, show the menu, and choose a playlist? Then perhaps a sub-smart playlist?> ( the actor playlist?). You may have to actually spell out what you want to do, point by point one step at a time, and in the end, I doubt you will be satisfied with my answer.
At this point in time, modified sub menu's are not a casual user option, you would have to get your coding hat on, and modify some of the xml files if not the code base. Not to be taken lightly, you would start with the wiki's and envelopment threads.
Suggestion: and a good work-around, would be the add-on
Add-on:Super Favourites (wiki) with this, it will add the menu item SF to the list, and when called (you would have to set-up your playlists inside SF first) a list of your smart playlists available. Hopefully this function will not be depreciated in Kyrpton, but there is talk.
The rule 'Actor' '' is not' 'actors name'
If anyone else can see a different point of view here, please help this guy out.
P.S. out of curiosity, isn't there a French language Kodi site?