grumbleradded a comment год назад
А если ударение на "в качестве актрисы"?
Can it be something like "My debut was acting / as actress"?
я дебютировала в качестве актрисы
I made my acting debut 
А если ударение на "в качестве актрисы"?
Can it be something like "My debut was acting / as actress"?
Only for clarification:
A: I debuted last year in New York.
B: As a musician?
A: No, my debut was acting/as an actress.
In other words, you wouldn’t use that form to make the initial announcement.