The show starred Eve Arden as Connie Brooks, the English teacher at Madison High School. The show emphasized how difficult it was to make ends meet on a teacher's salary. She forever hoped to be promoted to head of the English department, but the goal was always just out of reach; she also hoped for Mr. Boynton to marry her, only to be disappointed.
Gale Gordon was Osgood Conklin, the principal of Madison. Gordon, of course, could be terrifically bombastic when his characters would explode in anger, and he seemed to know that Conklin's anger was at its funniest when set to a slow burn. There was a particular knack he had to deliver increasingly histrionic dialogue until suddenly halting and, switching to a calm, mellow voice, would ask Miss Brooks to verify whatever the episode's misunderstanding had been, then hit his top.
Jeff Chandler was Philip Boynton, the bashful biology teacher; Chandler was a legitimate Hollywood heart throb and a radio tough guy who'd played the hardboiled Michael Shayne. His performance as the stammering, awkward Mr. Boynton was a departure for him and really showed off his range.
Richard Crenna was Walter Denton, a helpful student with a piercing nasal voice; Walter thought of himself as a loquacious and erudite young scholar but he would frequently mangle his English, much to Connie's annoyance; he also had a habit of eating up Mrs. Davis' food. Walter would drive Connie to Madison each morning and frequently he would be the one to bring up the episode's particular problem.
Jane Morgan was Margaret Davis, Connie's scatterbrained landlady; she frequently would begin stories about her absent-minded sister Angela, only to forget her own anecdote mid-story.
Gloria McMillan was Harriet Conklin, the principal's daughter and girlfriend to Walter; she was simply a nice girl, but would sometimes unwittingly exacerbate the episode's problem, especially if she thought she was "helping" Miss Brooks.
Other recurring characters included Stretch Snodgrass (Leonard Smith), Madison's star basketball player but also the dimmest character in the school; Miss Enright (Mary Jane Croft), Connie's rival English teacher both for the position as head of the English department and in dating Mr. Boynton; Jacque Monet (Gerald Mohr), the school's French teacher; custodian Mr. Jensen (Bob Jellison), who took his grammar very seriously (such as objecting to the phrase "pick up" when the object in question is above Connie's head); Mrs. Conklin (Virginia Gordon) occasionally appeared; and Mr. Stone (Joseph Kearns), the school's superintendant, who seemed to visit Madison only when things were especially chaotic. There was an appreciable amount of lore as well, such as Madison's rivalry with Clay City High, as their principal Jason Brill was a rival to Mr. Conklin who would sometimes try to lure Madison's faculty to his school; Jason Brill did appear in a few episodes (played by Frank Nelson in one) but he was usually more spoken of than he was present.
CBS ran three auditions before finally launching the series. The 1st audition starred Shirley Booth as the series had originally been intended as a vehicle for her, but she fell out with the producers; the 2nd audition (which we don't have) starred Joan Blondell; finally, Eve Arden was cast in the 3rd audition. The first actual episode was also drawn from the same script as the audition scripts. Beyond the change in lead the role, there are interesting differences between the 3 versions we have of the first script. In the 1st audition, Mr. Conklin was the new President of the school board, rather than the principal. In the 3rd audition, Mr. Conklin was the new principal (but played by Joe Forte) and Jeff Chandler and Richard Crenna took over the roles of Mr. Boynton and Walter Denton; Gale Gordon didn't become Osgood Conklin until the 2nd broadcast episode (which is also when Gloria McMillan debuted as Harriet). It's also interesting that in all the version of the audition script, Walter's mother is set up as an important character on the school board, but she was mostly out-of-focus in the series proper.
I found it interesting that early on, it's established Mrs. Davis went to school with Mr. Conklin; I'd noticed that he always referred to her as "Margaret," but she was portrayed as being much older than he was; anyway, it's only in those early episodes that their past is mentioned. It's also interesting that early on, Mr. Stone was introduced as a former wartime comrade of Mr. Conklin's. Although Mr. Conklin's status as a veteran remained an important part of his character (his style of calling out "dismissed!" at Miss Brooks, for instance), he and Mr. Stone's character bond seemed to disappear and Mr. Stone seemed forever suspicious of Conklin, rather than the guardedly favourable impression he had of Conklin early on.
The series was set around the school, but seldom depicted scenes in the classroom. Usually, scenes were set at Mrs. Davis' home, in Mr. Conklin's office, in Mr. Boynton's biology lab or in the school cafeteria. The series' economy of locations is unusual for a radio series and suggests that from early on, Larry Berns and Al Lewis were thinking how they might adapt their stories to television; the TV series ran from 1952-1956, then ended with a theatrical Our Miss Brooks in which Connie finally got engaged to Mr. Boynton.
Our Miss Brooks let Eve Arden demonstrate she was an extremely capable lead performer, when for most of her career she'd been someone's sidekick (as on the Danny Kaye Show, for instance). Much like Marie Wilson on My Friend Irma, Eve Arden was known, but not a star; Our Miss Brooks became the work she remains best-known for.
The biggest change the show endured during its run was the loss of Jeff Chandler, who was replaced with Robert Rockwell in 1953. Rockwell likewise portrayed Mr. Boynton on the TV series. In fact, the TV version did an excellent job of retaining the radio cast: Eve Arden, the indispensable Gale Gordon, Richard Crenna, Gloria McMillan, Jane Morgan, Joseph Kearns, Virginia Gordon, Mary Jane Croft, even Leonard Smith - all appeared on the small screen.
The Old-Time Radio Researchers have a YouTube playlist with 188 videos (the first 4 are biographies of the cast):
