SAM FINALLY ADMITS TO OWEN THAT SHE LIVES PLATONICALLY WITH EX-BOYFRIEND TODD, AND OWEN DISCLOSES THAT HIS BEST FRIEND IS HIS EX-GIRLFRIEND, WILLOW -- BUT SAM BECOMES JEALOUS WHEN A ROMANTIC SPARK IGNITES BETWEEN TODD AND WILLOW -- ON ABC'S "SAMANTHA WHO"

James Tupper ("Men in Trees") Guest Stars as Owen

"The Ex" � After finally telling current boyfriend Owen (James Tupper, "Men in Trees") that she lives with ex-boyfriend Todd, Sam discovers that Owen's best friend is also his ex-girlfriend, Willow. But when a romantic spark ignites between Todd and Willow, Sam finds herself becoming jealous and must decide which man is most important in her life. Meanwhile, Dena tries her best to shoot a flattering picture of an non-photogenic Andrea in order to secure her a date with a hunky pro-basketball player, on "Samantha Who?," MONDAY, NOVEMBER 17 (9:32-10:02 p.m., ET) on the ABC Television Network.

"Samantha Who?" stars Christina Applegate as Samantha, Jennifer Esposito as Andrea, Kevin Dunn as Howard, Melissa McCarthy as Dena, Tim Russ as Frank with Barry Watson as Todd and Jean Smart as Regina.

Guest starring are James Tupper as Owen, Stephen Rannazzisi as Seth, Eliza Coupe as Willow, Dimitri Lekkos as guy no.1, Troy Dudley as guy no.2 and Aaron Blake as guy no.3.

"The Ex" was written by Jessi Klein and directed by Beth McCarthy Miller.

"Samantha Who?" is broadcast in 720 Progressive (720P), ABC's selected HDTV format, with 5.1-channel surround sound and Spanish subtitles via secondary closed captioning. A TV parental guideline will be posted closer to airdate.

This episode of "Samantha Who?" will be available on ABC.com the day after airing on the network for users to watch online.