"Ain't No Big Thing" was almost an unofficial second theme song for the first season. It was written by Kui Lee and recorded by many performers, including Don Ho, the Brothers Cazimero and Kawika Crowley.
McGarrett alludes to the song in "....And They Painted Daisies On His Coffin" (#1.5) when he tells Big Chicken, "Ain't no big thing, brother." In "No Blue Skies" (#1.8), Joey sings the optimistic chorus. In "The Box" (#1.16) Big Chicken sings it in the shower. In "Tiger by the Tail" (#1.3) Bobby George sings it during his nightclub act.
The role of Che Fong is closely associated with Harry Endo. In this episode he is played by Edward Tom.