Peter Falk wasn't the first choice to play the titular detective on "Columbo," but it's safe to say that he nailed the role and became synonymous with the character for most of his career. The actor helped turn the '70s procedural into a bona fide success story, winning a bunch of Emmys in the process, and making audiences fall in love with his trench coat-wearing, scruffy crime-solver. What's more, Falk's portrayal of Frank Columbo inspired Christian Bale's performance in 2022's "Amsterdam," proving that he's had a long-lasting effect on popular culture. However, Falk wasn't the only actor to leave his mark on the series, as his wife, Shera Danese, set a record for her contributions to the show.

Overall, Danese appeared in several episodes of "Columbo," making her the most featured guest star in the series' history. Her debut, which came about in the season 6 episode "Fade In to Murder,...