Now you might ask, what kind of personality and skills do I need to have if I want to work in the theater?
Well... the skills you need to have depends on your position. However, these are some common skills you need to prepare yourself with.
Qualifications for a crew member
depends on your position
cast members
Qualifications:
degree level: not required
Degree field: no formal education requirements; but a bachelor's degree in theater arts, drama, acting/ and performing would be helpful
Relevant exam results: not required but A levels, GCSEs and BTEC diplomas in subjects such as English, Drama and Performing Arts would help
In short, qualifications are not essential for becoming an actor or performer.
References:
https://nationalcareers.service.gov.uk/job-profiles/cinema-or-theatre-attendant#HowToBecome