This sparked imitators, and during 1956 Lyle Kenyon Engel of Republic Features Syndicate persuaded an investor to finance a package of two radio shows and four magazines. The shows were American Agent, a spy drama, and The Frightened, to be narrated by Boris Karloff.
The initial success triggered a wave of imitators, and in 1956 Lyle Kenyon Engel of Republic Features Syndicate successfully lured an investor to back a collection of two radio series and four magazines. The programs were American Agent, a spy drama, and The Frightened, which would be narrated by Boris Karloff.