Who is Corporal Walter "Radar" O'Reilly from MASH and what is their importance? H._Richard_Hornberger English & Literature "Corporal Walter ""Radar"" O'Reilly | MASH"

Corporal Walter (Radar) is a young man from Iowa, who serves as assistant to Colonel Blake. Radar has a distinctive auditory gift made evident through his ability to hear conversations and approaching helicopters from long distances.