The Bohemians:
* Rodolfo: A poet, passionate and romantic, deeply in love with Mimi.
* Marcello: A painter, Rodolfo's best friend, known for his volatile relationship with Musetta.
* Schaunard: A musician, the practical and resourceful member of the group.
* Colline: A philosopher, often seen as the group's elder statesman.
Other Important Characters:
* Mimi: A young seamstress, delicate and sweet, who is desperately in love with Rodolfo.
* Musetta: A vivacious and flirtatious singer, Marcello's on-again-off-again girlfriend.
* Benoit: The landlord of the bohemians' garret, a grumpy old man.
* Alcindoro: A wealthy older man who is Musetta's patron.
* Parpignol: A toy seller who appears in Act II.
Minor Characters:
* A Customs Officer
* A Sergeant
* Street Singers
* People at the Café Momus
* Other Bohemians
These characters form a complex and fascinating group, their lives intertwined by love, poverty, and friendship in the Parisian underbelly.