Airing for roughly fifteen years, ER saw the death and abrupt exits of many beloved characters, most notably Dr. Mark Greene ...

Notably, Dennis Gant (future House star Omar Epps) was the young surgical intern introduced in season 3 that gave ER its first tragic character death ... Dr. Mark Greene succumbed to relapse ...

Rep. Mark Green’s daughter is grieving “the loss of the person that we thought was our father” as the family navigates the ...