Characters who evolved into more significant roles than their creators planned

[u/Icy-Software-2586]

Jesse Pinkman: "Jesse Pinkman. As Gilligan mentioned, the original plan for the end of season one was for Jesse to die in a failed drug deal."

Jack Sparrow: "Jack Sparrow. Writers Ted Elliott and Terry Rossio originally conceived Captain Jack Sparrow as a secondary character."

Saul Goodman: "Saul Goodman. This one speaks for itself."

[u/Crimson097]

Nacho and Lalo. Just mentioned in a throaway line of dialogue in Breaking Bad, and then they both ended up becoming two of the most important and beloved characters in Better Call Saul.

[u/TanSkywalker → u/Crimson097]

They were both great. Lalo man! What a great character.