Season Two's credits have changed. The opening credits now include appearances by Sendhil Ramamurthy, Anne Dudek, and Peter Gallagher along with the main cast members Piper Perabo, Christopher Gorham, and Kari Matchett.
"Begin the Beguine" is a song written by Cole Porter in 1935. "Beguine" is a type of music and dance similar to rumba. Band leader and clarinetist Artie Shaw recorded a swing version of the song in 1938, which became a hit. The song was also used in the musical Broadway Melody of 1940 (1940), becoming even more popular.
This episode is named after a song by R.E.M.