Have to chime in with some B5 names
John Sheridan
Jeffrey Sinclair
Susan Ivanova
Michael Garibaldi
G'Kar
Delenn
Londo Molari (well not so much a hero, yes?)
Vir
Mathew Gideon (Crusades capt.)
Galen (technomage in Crusades and trilogy)
David Martel (Legend of the rangers capt.)