Gavan O’Herlihy left his mark as a distinctive character actor, often bringing a mix of charm and toughness to his roles. Fans of Superman III will remember him as the menacing Gus Gorman’s sidekick, the henchman Bart, a part that showcased his knack for playing rough-edged yet memorable figures. Beyond Superman III, his work in movies like Never Say Never Again and TV shows including Happy Days hinted at his ability to slip into both villainous and more lighthearted parts with ease. O’Herlihy’s performances stand out because he adds a certain grounded intensity, whether he is quietly intimidating or delivering sharp moments of humor. Working during a time when ensemble casts brought many cult classics to life, he contributed to those films in small but unforgettable ways, giving audiences characters who linger long after the credits roll.