Join or Sign In

Sign in to customize your TV listings

Continue with Facebook Continue with email

By joining TV Guide, you agree to our Terms of Use and acknowledge the data practices in our Privacy Policy.

Alyson Hannigan to Guest-Star on The McCarthys

Alyson Hannigan is crashing The McCarthys' Christmas. The How I Met Your Mother alum has booked a guest-starring role on The McCarthys' holiday-themed Dec. 18 episode, Entertainment Weeklyreports.

liz-raftery.jpg
Liz Raftery

Alyson Hannigan is crashing The McCarthys' Christmas.

The How I Met Your Mother alum has booked a guest-starring role on The McCarthys' holiday-themed Dec. 18 episode, Entertainment Weeklyreports.

10 holiday TV episodes '90s kids will remember

Hannigan will play Pam, the newly-single upstairs tenant of Marjorie (Laurie Metcalf) and Arthur (Jack McGee)  who joins the family for Christmas Eve. She doesn't have any idea what she's in for, however, as the family's annual gift exchange brings out the best and worst in all of them.

The McCarthys airs Thursdays at 9:30/8:30c on CBS.

(Full disclosure: TVGuide.com is owned by CBS.)

VIDEO: Katherine Heigl shares why she's finally ready to return to TV for State of Affairs: