Namesakes
Fictional Characters from Television:
2 characters
Marshall Flinkman 2001 Alias 
Marshall Eriksen 2005 How I Met Your Mother
Hall-of-Famers:
1 football
(football) Marshall Faulk 2011
Most Valuable Players:
1 winner
Marshall Faulk 2000 football
Nobel Prize Winners:
1 medicine
(medicine) Marshall Warren Nirenberg 1968
Notable Actors and Entertainers:
3 actors, 1 comedian
Charles Gray (middle name Marshall) 1928-2000
Jeff Foxworthy (middle name Marshall) 1958-
John Marshall Jones 1962-
Marshall Allman 1984-
Notable Musicians:
1 musician
Marshall "Eminem" Mathers 1972-
Olympic Medalists:
1 gold/silver, 1 silver, 1 silver/gold
(silver) Cissie Stewart (middle name Marshall) 1928 swimming - 4x100 m freestyle relay
(gold/silver) Marshall Wayne 1936 diving - platform; diving - springboard
(silver/gold) Ken Walsh (middle name Marshall) 1968 swimming - 100 m freestyle; swimming - 4x100 m freestyle relay; swimming - 4x100 m medley relay
Rock and Roll Hall-of-Famers:
1 musician
Marshall "Eminem" Mathers 2022