After Sylvester Stallone, Debra Jo Rupp Joins This Is Us season 2

Actor Debra Jo Rupp, who portrayed Kitty Forman on "That 70s Show" for eight seasons, is set to guest star in the second season of "This Is Us".

Debra will be playing a social worker named Linda, who will cross paths with Randall (Sterling K Brown) and his wife Beth (Susan Kelechi Watson) as they plan to adopt a child, reported Ace Showbiz.

Debra is set to appear in several episodes of the sophomore season.

She will join previously-announced season 2 guest star Sylvester Stallone, who is playing himself on the hit NBC show.

The "Rocky" legend will portray Kevins (Justin Hartley) co-star in a fictional wartime movie directed by Ron Howard, who will also play himself.

Also set to guest star on the Emmy-nominated series include Katie Couric, Katey Sagal, Brad Garrett, Seth Meyers, Jimmi Simpson and Elizabeth Perkins.

"This Is Us" season 2 will air next month.