Let's begin by the one who started it all: SUPERMAN and all characters related to him.
1. Tom Welling (Clark Kent in Smallville)
2. Dean Cain (Superman in Lois & Clark)
3. Henry Cavill (Clark in Justice League film)
4. Jerry O'Connell (Clark's voice in Batman:Hush)
5. Tim Daly (Kent's voice in Superman animated)
6. Matt Bomer (Clark's voice in Superman: Unbound). He is also Negative Man in Doom Patrol.
7. Adam Baldwin (the Man of Steel's voice in Superman/Doomsday)
8. Kyle MacLachlan (Superman's voice in Justice League: The New Frontier)
9. James Denton (Clark's voice in All-Star Superman)