When Mr. Keen, Tracer of Lost Persons first debuted over the Blue Network on October 12, 1937, the show’s title accurately described Keen’s stock-in-trade; the “kindly old investigator” tracked down individuals who had mysteriously vanished, leaving behind their families, homes, jobs and other day-to-day activities. Keen (he never had a first name, unless it was “Peachy”) was assisted in these duties by an Irishman named Mike Clancy. Mike wasn’t much of a brainiac but he could use the necessary brawn when the situation called for it. Bennett Kilpack played kindly ol' Keen throughout most of the program’s run, as well as Philip Clarke and Arthur Hughes, while Jim Kelly took the role of Clancy. The series originally aired as a thrice-weekly fifteen-minute serial from 1937-43 , providing more than ample time for Keen to solve even the most baffling of disappearances.

Beginning November 11, 1943, the program changed its format to that of a half-hour weekly offering—and though the title and theme song remained, Keen branched out into investigating murders.

Mr. Keen, Tracer of Lost Persons enjoyed a healthy eighteen-year stint over radio, ending its run not on April 19, 1955 but on September 26 of that same year. Over the years, the series had a variety of sponsors: Bisodol, Kolynos toothpaste, Chesterfield cigarettes, American Chicle, etc., and there are nearly sixty broadcasts extant today for modern-day listeners to revel in.

In this app ;

1- Complete available Recordings of the Show.

2- We have designed the stunning user interface from scratch to provide you with the best UX.

3- Completely redesigned two new audio players , one for streaming and other for downloading mode.

4- With Download playback mode , enjoy listening to the shows offline.

5- Introducing , All new user portal that let you add episodes to your favourite list and later listen them from any of our other apps.

6- More social now - Find people to follow and send them messages , privately.

What’s New

Version 4.0

1. Support for IOS11.
2. Bug Fixes.
3. Support to delete the downloads faster.

Ratings and Reviews

5.0 out of 5
6 Ratings
6 Ratings
DeeEarl ,


I am really glad that someone took the time to make these old vintage classics available for us! It was a much better time in the world when these shows played, and the style and writing is classical murder mystery. I enjoy these as well as the Sherlock Holmes series too! Thank you for making these classics available to the next generation. 5 Star all the way!

BDRand3 ,

Excellent Old Time Radio

I enjoy these old time radio dramas so much. This app provides well preserved, intriguing crime dramas from a time when radio was the primary entertainer in homes. The sound quality is excellent. Content is adequate for hours of listening pleasure. Thanks for this app !

Fun in So Cal ,

Cool storyline

These characters on this app are unique. Older, experienced, calm and collected is Mr. Keen. A bit of a different slant on the typical detective. Thought provoking stories that will hold your attention. An app to enjoy. Thank you for presenting us a winner!


Taha Maddam
69.2 MB

Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Rated 9+ for the following:
Infrequent/Mild Mature/Suggestive Themes
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