When Wolowitz dresses up as Sheldon for Halloween, Sheldon seeks retaliation at Leonard and Penny’s Halloween party. Also, Leonard is shocked that Penny doesn’t remember their first kiss.false2019-12-04 22:57:25The Imitation PerturbationMark Cendrowski8.32018TV-PGtt6674704686058019ComedyRomancehttps://www.thetvdb.com/banners/episodes/80379/6860580.jpgBrian PosehnGuestStarhttps://image.tmdb.org/t/p/original/AfxSZidOeClXdBDz5yAY3vUiaQU.jpgDavid TheuneGuestStarhttps://image.tmdb.org/t/p/original/zNadeApQk3UBQL6I4gEORdeDng6.jpgKevin SussmanGuestStarhttps://image.tmdb.org/t/p/original/zOOZhDHHj4oWH9jOhZrfNs1eWE8.jpgPamela AdlonGuestStarhttps://image.tmdb.org/t/p/original/DbStLMSMhW1qtmKugYjS4yWOi.jpgRati GuptaGuestStar6122018-10-25assassengprogressiveFalseFalse