- “"Back to work! Formula break is over! We're in a crisis here! *picks up Chatter telephone with angry face and yells* Don't you know that we're in a crisis in here?!"”
- ―Big Boss Baby to her minions
Big Boss Baby is the main boss in BabyCorp and a (former) antagonist of the film.
She was voiced by British actress Edie Mirman.
Big Boss Baby was the part of company her entire life, but only after Super Colossal Big Fat Boss Baby's "retirement" she gain her post as the highest of the Boss Babies.
- She's the highest rank Boss Baby in whole company (except "The Board of Directors"), that's why her title is Big Boss Baby