- “Who are you?"
"Let's just say I'm the boss.”
- ―Tim asking Boss Baby about who he is
Boss Baby is the titular character of the film The Boss Baby."
Boss Baby is dropped into the midst of the comfortable Templeton family as their second child and younger son, on a mission to restore love to babies. The elder Templeton boy, named Tim and aged seven and a half years, discovers his secret and resents him for taking away his parents' attention and love. As much as Boss Baby dislikes Tim in the beginning, he agrees to accept his help in order to remain in his position as boss. Eventually he warms up to the older boy.
The Boss Baby was one of the babies created at the Baby Corp, the place where all babies in the world were born from. However during a sorting process, the machine failed to tickle him and he was sorted into the "management" section instead of the family section, putting him on the path to becoming Boss Baby. He was given equipment and training. During this time, he came to idolize the Super Colossal Big Fat Boss Baby, once a legendary baby who was bestowed the company's highest position and was given an exclusive office.
After working there for an undetermined amount of time, he became known as the Boss Baby and was sent on a mission by his superior, the Big Boss Baby, to find out why humans adore puppies more than babies.
Boss Baby is shown as a professional kid with a babyish twist. For example, he refers to Tim as 'the K-I-D' when the former spies on him. He appears to have a good head for business, seeing as in the epilogue he's still wearing a businessman's suit. Boss Baby's also fond of order and goal-oriented.
- The third DreamWorks Animation film to have Alec Baldwin voice a character, after Makunga in Madagascar: Escape 2 Africa and Nicholas St. North in Rise of the Guardians.
- His theme song "My House" by Flo Rida, as heard in the film's trailer, is familiar to Shrek's theme song "All Star" by Smash Mouth, as heard in the film's opening credits.