Lt. Frank Ballinger is a no-nonsense plain clothes cop in the elite M Squad Division. The Squad's task is to root out organised crime and corruption in America's Second City, Chicago.
Network: NBC
Seasons
3
Episodes
117
Status
Ended
Lee Marvin
Detective Lt. Frank Ballinger
Paul Newlan
Police Capt. Grey
DeForest Kelley
Police Sgt. Miller
Harry Landers
Max Decker
Barney Phillips
Doctor
Elizabeth Harrower
Mrs. Michaels
Bill Erwin
Roger Jessop
William Hudson
Paul Webster