Even though “How I Met Your Mother” is all about her, we don’t get to meet her until the end of season 8. Cristin Milioti plays “Tracy McConnell” aka “The Mother”! In 2013 Cristin starred in “The Wolf of Wall Street”, in 2014 she played “Lucy” in the movie “The Occupants”. Cristin dated Jesse Hooker but today the actress is single.