List of Famous people who died at 54

Matthew Taylor Mellon II was an American businessman who was a chairman of the New York Republican State Committee's finance committee.

Mark Steven Fidrych, nicknamed "The Bird", was a Major League Baseball (MLB) pitcher. He pitched his entire career for the Detroit Tigers (1976–1980).

Princess Hermine de Clermont-Tonnerre was a French socialite, stylist, etiquette writer and actress. She was member of the House of Clermont-Tonnerre, a French noble family.

Francis Miller Fesmire was an American emergency physician and a nationally recognized expert in myocardial infarction. He authored numerous academic articles and assisted in the development of clinical guidelines on the standard of care in treating patients with suspected myocardial infarction by the American College of Emergency Physicians and the American Heart Association/American College of Cardiology. He performed numerous research investigations in chest pain patients, reporting the usefulness of continuous 12-lead ECG monitoring, two-hour delta cardiac marker testing, and nuclear cardiac stress testing in the emergency department. The culmination of his studies was The Erlanger Chest Pain Evaluation Protocol published in the Annals of Emergency Medicine in 2002. In 2011 he published a novel Nashville Skyline that received a 5 star review by ForeWord Reviews. His most recent research involved the risk stratification of chest pain patients in the emergency department.

Jean Hagen was an American actress best known for her role as Lina Lamont in Singin' in the Rain (1952), for which she was nominated for an Academy Award for Best Supporting Actress. Hagen was also nominated three times for an Emmy Award for Best Supporting Actress in a Comedy Series for her role as Margaret Williams (1953–56) on the television series Make Room for Daddy.

Thomas Noel Rettig was an American child actor, computer software engineer, and author. He is remembered for portraying the character "Jeff Miller" in the first three seasons of CBS's Lassie television series, from 1954 to 1957, later seen in syndicated re-runs with the title Jeff's Collie. He also co-starred with another former child actor, Tony Dow, in the mid-1960s television teen soap opera Never Too Young and recorded the song by that title with the group, The TR-4.

Clay Martin Croker, generally credited as C. Martin Croker, was an American animator and voice actor. He was best known for having provided the voices of Zorak and Moltar on the animated series Space Ghost Coast to Coast, replacing Don Messick, who originally voiced the characters in the 1960s series Space Ghost.

Krzysztof Kieślowski was a Polish film director and screenwriter. He is known internationally for Dekalog (1989), The Double Life of Veronique (1991), and the Three Colors trilogy (1993–1994). Kieślowski received numerous awards during his career, including the Cannes Film Festival Jury Prize (1988), FIPRESCI Prize, and Prize of the Ecumenical Jury (1991); the Venice Film Festival FIPRESCI Prize (1989), Golden Lion (1993), and OCIC Award (1993); and the Berlin International Film Festival Silver Bear (1994). In 1995, he received Academy Award nominations for Best Director and Best Writing.

Steve Dillon was a British comic book artist, from Luton, Bedfordshire, best known for his work with writer Garth Ennis on Hellblazer, Preacher and The Punisher.

Steve Soto was an American musician. Soto was a multi-talented instrumentalist, a founding member of California punk rock band Agent Orange in 1979, and a founding member of Adolescents in 1980 performing on bass guitar in both bands. Soto was also a member of Legal Weapon, Joyride, Manic Hispanic and the punk supergroup 22 Jacks. Soto fronted his own band, Steve Soto and the Twisted Hearts and he also became a member of Punk Rock Karaoke in 2001.