Joshua Sharpe was a rarity in the world of radio private eyes. When he closed up his shop for the day, he headed home to his two kids who he raised as a single dad. His son and daughter gave him the affectionate nickname The Big Guy. Together, they starred in the unique radio detective drama where their family lives occasionally intersected with Sharpe's case of the week. Henry Calvin stars as the Big Guy in three radio mysteries: "The Unheard Voice" (originally aired on NBC on May 7, 1950), "The Case of the Villainous Friend" (originally aired on NBC on August 27, 1950), and "The Case of the Patent Leather Bag" (originally aired on NBC on November 5, 1950).