This is the fourth of Frank Nelson's (Sergeant Nelson) eleven guest appearances. He plays the game show host Freddie Fillmore three times (seasons 1 and 3), Dickie Davis in season 3, Ben Benjamin in season 4, a train conductor and customs officer in season 5, and Ralph Ramsey in season 6.
Lucy cites her phone number in this episode as Murray Hill 5-9975 (645-9975), that number would change throught the run of the series.
(After the Sergent realizes the error)
Lucy: See? I told you, you made a mistake! My husband is Ricky Ricardo, the famous bandleader!
Ethel: Yeah! And MY husband is....HER husband is Ricky Ricardo, the famous bandleader!
Lucy: HELP! We're getting arrested! HELP!