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"

Radar is sort of a manager on the base. Although he has little power, he makes things happen. People call him "radar" because he can sense when helicopters are approaching with wounded before anyone else can.