Still not stuffed on How I Met Your Mother Season 9 spoilers? Good, eat.

Since filming started July 10, cast and crew have been teasing fans with tidbits from the Season 9 set. The latest star to join finale season cast? None other than Ellen D. Williams!

As most HIMYM fans know, Williams plays "Patrice," Robin's mortal enemy. "Patrice" has been featured in several episodes. At one point Barney even pretends to date Patrice, only to make Robin jealous. Apparently it worked because they're getting married!

Along with Patrice, a few other characters have been confirmed for a Season 9 reprise. Barney's once estranged, and once closeted homosexual brother James, played by Wayne Brady, returns for the wedding. The Canadian Weird Al, "Peculiar Jacques" joins the cast along with The Office star Ellie Kemper. And what would be a How I Met Mother final season without the mother, Cristin Milioti, whom fans got their first glimpse of in the Season 8 finale episode.

Fans of the CBS hit know that Ted plans on moving to Chicago after the wedding, but still hasn't told his friends. SpoilerTV leaked the name for episode 4: "Last Time In New York."

Of course, the episode will most likely unfold as a flashback or flashforward. Will Ted be in the Farhampton train station in episode 4? Will he run into his future wife?

The ninth and final season of How I Met Your Mother is set to return September 23 for a special one-hour premiere.