The series was based on the 1951 syndicated radio series of the same name starring Humphrey Bogart and Lauren Bacall.
The series' title refers to the name of Slate Shannon's sailboat.
The hotel/bar operated by Slate Shannon is called "Slate Shannon's Place" and is located in Port-of-Spain, Trinidad.
One episode, apparently titled Feathered Capes,featured Christopher Dark, Richard Devon, and Ned Glass.