<P> Christmas Noelle "Chrissy" Snow was portrayed by Suzanne Somers . </P> <P> In the original unaired pilot of Three's Company; Samantha, the character who would become Chrissy, was portrayed by Susanne Zenor . Zenor was not picked for the second filming of the pilot, so actress Susan Lanier took over the role of Chrissy . Somers ultimately won the permanent role in the third and final pilot . </P> <P> Chrissy was born in Fresno, the eldest child of Reverend Luther Snow (Peter Mark Richman) and his wife (Priscilla Morrill). In one episode, she explains that she was named "Christmas" because her father was a big fan of Bing Crosby (whose song "White Christmas" became a signature song of his). In another episode, she states that her name is Christmas due to having been born in December . However, in the episode "Roper's Niece", Janet states that Chrissy's birth was "not until January ." Yet, in the season - four episode "Chrissy's Hospitality", Chrissy falls and hits her head, ending up in the hospital as a result . She explains to the nurse that her father named her Christmas because "she was the best present he ever got ." </P> <P> Chrissy was born into a religious family and always loved her family traditions, such as Christmas with the family . Every Sunday, the Snow family would go to church to hear her father preach . She always loved her family and friends, and upon moving to Santa Monica, she assured them that she would eventually return home to Fresno . </P>

Who played janet's sister on three's company