The Adventures of Leonidas Witherall
Based on the character created by Phoebe Atwood Taylor (under the pseudonym Alice Tilton) and starring Walter Hampden in the title role, The Adventures of Leonidas Witherall is an old time radio detective series with an unusual protagonist. He is the head of a distinguished New England boy's school and is best known for his remarkable resemblance to William Shakespeare! If that isn't enough, Witherall is also an accomplished author, penning the "popular Lieutenant Hazeltine stories".
He always gets mixed up in murder, solving crimes with his good friend Mrs. Mullet, the neighborhood housekeeper, played by Ethel Remey.
Here is a sample of the online episodes currently available at The Old Time Radio Fan: