Peters' television work also includes guest appearances on several television series. She appeared as the sharp-tongued sister of Karen Walker (Megan Mullally) on the penultimate episode of the NBC series "Will & Grace", "Whatever Happened to Baby Gin?" (May 2006); as a defense attorney on the NBC series, "" (November 2006); as a judge on the ABC series "Boston Legal" (May 2007); and as an accident victim in "Grey's Anatomy" (September 2008). Of her role in "Grey's Anatomy", "TV Guide" wrote: "Peters is especially fine as she confronts a life spinning out of control. I'd make her an early contender for a guest-actor Emmy nomination." In January, February and May 2009, she appeared in the ABC series "Ugly Betty" in five episodes as Jodie Papadakis, a magazine mogul running the YETI (Young Editors Training Initiative) program that Betty and Marc are in. Her appearance at the Adelaide Cabaret Festival in June 2009 was filmed and broadcast in Australia later that month.