As nouns the difference between actorness and actoress
is that actorness is quality of being an actor (an agent performing an act) while actoress is .
actorness
English
Noun
(-)
Quality of being an actor (an agent performing an act).
References
* Google Books: [https://www.google.co.uk/search?biw=1280&bih=881&tbm=bks&sclient=psy-ab&q=%22actorness%22&btnG=&oq=&gs_l=&pbx=1&gws_rd=cr&ei=pYvJVPzYAsbNygOBzoHADw]