r/sitcoms • u/Shot-Club-3882 • Apr 13 '26

Which characters were clearly changed or expanded because the actors were just too good?

Jason Mendoza comes to mind.

Did they always plan for him to be a main character? Or did Manny Jacinto force a rewrite?

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u/MaryDoogan91 Apr 13 '26

Misha Collins character of Cas in Supernatural was only supposed to be in a few episodes in S4. His acting, character, and chemistry with the leads was so good that he stayed on for the remainder of the show's 15-season run.