Lou Costello, one half of the iconic comedy duo Abbott and Costello, brought to life the lovable, bumbling character that made films like Bud Abbott and Lou Costello Meet Frankenstein and Abbott and Costello Meet the Mummy enduring crowd-pleasers. Costello’s knack for comic timing and chemistry with Bud Abbott made him a staple of Universal’s classic horror comedy crossovers, blending laughs with monsters. His portrayal of the confused but endearing everyman became a defining formula, especially in collaborations with director Charles Barton. Costello’s influence can still be felt in the way comedy duos balance slapstick with witty banter, leaving a unique mark on 1940s and 50s American cinema.