Bradley Whitford discusses his role on “The West Wing” and shares some impressive party tricks, while Nicole Petera from the San Diego Zoo showcases her incredible bird-calling skills. Laura Prepon talks about dyeing her hair, her love for poker, and her time on “That ’70s Show,” and plays a fun round of “Mad Gab.”

Ellen has the exclusive farewell interview with the entire cast of "The West Wing," including MARTIN SHEEN, ALLISON JANNEY, BRADLEY WHITFORD, RICHARD SCHIFF, JIMMY SMITS, JANEL MOLONEY, KRISTIN CHENOWETH and DULE HILL. Ellen and the cast celebrate with a special season finale send-off party! The cast shares special moments and highlights from the past seven seasons.

JULIA LOUIS-DREYFUS drops by and chats about her Emmy win for "The New Adventures of Old Christine (CBS, Monday @ 9:30pm)" and how she injured herself with the famed statue. Julia also speaks candidly about being a child of divorce. Plus, BRADLEY WHITFORD gives Ellen a little too much detail about how he keeps the romance alive in his marriage. He also chats about his return to television in the much anticipated Studio 60 on the Sunset Strip. (NBC, Monday @ 10pm) And, the runner-up from Rockstar: Supernova Dilana swings by and discusses the conflicts she had with other Supernova competitors and gives an amazing performance of Roxanne.