Danny DeVito’s Frank Reynolds has made himself a memorable figure in pop culture comedy. Almost every It’s Always Sunny in Philadelphia fan hails Frank as their favorite and the funniest character in the long-running sitcom. He is one of the reasons behind the show’s widespread popularity.

Notably, the Matilda actor was not an initial choice for the show. He was cast after the first season received poor ratings. Although DeVito had already seen the sitcom and loved it by then, he had a condition to join It’s Always Sunny, and it might be one of the primary reasons behind its widespread success.

Danny DeVito as Frank Reynolds in It’s Always Sunny in Philadelphia | Credits: FX Bringing in Danny DeVito for It’s Always Sunny in Philadelphia was not easy

Before doing It’s Always Sunny, Danny DeVito was already immensely popular for his successful Hollywood ventures and his critically acclaimed…