ET has the latest...

ET has confirmed that "Private Practice" star Kate Walsh, Christian Slater, who heads from film to TV this fall in the NBC drama, "My Own Worst Enemy," and "Late Night" host Conan O'Brien will be presenters when the "60th Primetime Emmy Awards" airs live on ABC on September 21.

Also teaming up to present is "How I Met Your Mother" star Neil Patrick Harris, who is set to host the Creative Arts Emmys with Sarah Chalke, and Kristin Chenoweth of "Pushing Daisies," as well as legendary comic Don Rickles, aka Mr. Warmth for his biting comedy, and the Emmy Award-winning reality TV darling Kathy Griffin.

Previously announced celeb presenters include William Petersen, Laurence Fishburne, America Ferrera, Jennifer Love Hewitt, Hayden Panettiere, Vanessa Williams, Teri Hatcher, Marcia Cross, Dana Delany, Nicollette Sheridan, Felicity Huffman, Eva Longoria Parker, Hugh Laurie, Julia Louis-Dreyfus, Tina Fey and Amy Poehler.

The "60th Primetime Emmys" will be held at the Nokia Theater in Los Angeles.