KARA'S THANKSGIVING MAY BE RUINED WHEN HER FOSTER MOTHER COMES FOR A TENSE VISIT AND A VOLATILE CATCO EMPLOYEE IS TRANSFORMED INTO THE VILLAINOUS LIVEWIRE, ON "SUPERGIRL," MONDAY, NOV. 23

Brit Morgan Guest Stars as Leslie Willis/Livewire and Helen Slater Guest Stars as Dr. Eliza Danvers, Kara's Foster Mother

"Livewire" - Kara's Thanksgiving may be ruined when she suspects her foster mother, Dr. Danvers (Helen Slater), who is coming to town, disapproves of her new role as a superhero. Also, when an accident transforms a volatile CatCo employee into the villainous Livewire, she targets Cat and Supergirl, on SUPERGIRL, Monday, Nov. 23 (8:00-9:00 PM, ET/PT) on the CBS Television Network. Brit Morgan guest stars as Leslie Willis/Livewire and Helen Slater guest stars as Dr. Eliza Danvers, Kara's foster mother.

REGULAR CAST:

Melissa Benoist (Kara Danvers/Supergirl)
Calista Flockhart (Cat Grant)
Chyler Leigh (Alex Danvers)
Mehcad Brooks (James Olsen)
David Harewood (Hank Henshaw)
Jeremy Jordan (Winslow "Winn" Schott)

RECURRING CAST:

Jenna Dewan-Tatum (Lucy Lane)
Malina Weissman (Young Kara)
Helen Slater (Dr. Eliza Danvers)
Dean Cain (Dr. Jeremiah Danvers)
Jordan Mazarati (Young Alex)
Jay Jackson (Male Newscaster)

GUEST CAST:

Brit Morgan (Leslie Willis/Livewire)
Michael Mealor (Fratty Dude)
Kevin Covais (High School Kid)
Tom Waite (Pilot)