Understudies are on-stage, every night, in a specific [ensemble] role, and they cover principal roles. Swings are off-stage and cover ensemble.”

Do understudies ever perform?

Coined in 1874, the term understudy has more recently generally been applied only to performers who can back up a role, but still regularly perform in another role.

How often does an understudy perform on Broadway?

Re: Broadway Show... How often do understudies perform? Eight shows a week is a standard theater schedule. They're trained to work that schedule.