As heavily promoted, CBSHow I Met Your Mother introduced the mother character in the final seconds of last night’s season finale when she was seen purchasing a train ticket to Farhampton, where she will eventually meet Ted (Josh Radnor). Cristin Milioti, star of Broadway’s Once, was cast in the role, which will be featured prominently on HIMYM‘s upcoming ninth and final season. “Cristin Milioti is, against all odds, exactly what we were looking for,” HIMYM co-creator/executive producer Carter Bays said. “She made us laugh on 30 Rock, she made us swoon in Once, and her ukulele skills are no joke”. As for the plot of Season 9, “it will tell the epic story of the longest wedding weekend ever”, Bays said. In casting the mother, HIMYM stayed true to its original casting strategy, which involved casting young, relatively unknown actors like Radnor, Jason Segel and Cobie Smulders who became stars on the show.