


Doting Parent: To Tabitha and Tina in the sequel.Cool Big Bro: Over time, he becomes a much kinder big brother to Boss Baby.At the end of the film, Boss Baby presents Tim with a repaired Lamb Lamb, and in the epilogue, it is shown to have been passed on to Tim's daughter. The Boss Baby then threatens Tim through his Lamb Lamb, and their fighting eventually results in Lamb Lamb being badly ripped. Companion Cube: He has his Lamb Lamb, which the Boss Baby makes fun of.Tim is an imaginative, energetic, friendly 7-year-old kid. Character Narrator: His adult self narrates the movie.Butt-Monkey: Tim falls victim to a lot of slapstick in the movie.As a consequence of this in the sequel, he briefly takes Tabitha's place as the class Butt-Monkey when he's restored to his child self in order to infiltrate her school.Book Dumb: Tim is imaginative, clever, and adventurous, but gets mostly Cs and Ds in school, something that the Boss Baby tries to use against him.Big "YES!": He's prone to them when something goes his way.Big Brother Mentor: Played with in the sequel as he helps Tabitha to build up her confidence with singing while temporarily restored to his child self.

During the climax, Tim sings the song his parents would sing to him to calm down a scared Boss Baby. Big Brother Instinct: Grows into having this for the Boss Baby as they both grow to genuinely love one another.

Big Brother Bully: Towards Boss Baby at first, out of fear that he'll take up all the attention from his parents.Beware the Nice Ones: Tim is a sweet kid but was willing to catapult Boss Baby for pushing his Berserk Button.He was willing to throw Boss Baby out of the window for it. Berserk Button: Do not break his stuffed toy Lam-Lam.Badass Adorable: Don't let his cute, innocent looks fool you.Awesome McCoolname: In the sequel, he calls himself Marcos Lightspeed in addition to wearing glasses so no-one will recognise him.Always Second Best: In the sequel, he is this not just to his younger brother but also to Precious the pony, as far as his brother's concerned.Aloof Big Brother: Tim is initially not excited over having a baby brother, mainly because his parents become too busy to spend time with him like they use to.The Character Narrator, main protagonist, and The Boss Baby's 7-year-old brother. Old Tim voiced by: Tobey Maguire (English, first movie), James Marsden (second movie), Luis Daniel Ramírez (Mexican Spanish), Mamoru Miyano (Japanese/theater version), Anri Katsu (Japanese/In-flight version)
