<Li> Michael Angarano as Nicky Pearson: Jack Pearson's younger brother who was killed in action while serving in the Vietnam War alongside his brother . </Li> <P> The following is a supplementary list of guest stars, some recurring, who appear in lesser roles . The characters are listed, in alphabetical order by actor, by the season in which they first appeared . </P> <Ul> <Li> Susan Blakely as Anne: Dr. K, a widower, dates and marries Anne . </Li> <Li> Katie Couric as herself: Kevin had a recurring dream about an interview by Katie Couric going badly . </Li> <Li> Wynn Everett as Shelly: Shelly was Miguel's first wife until their divorce . </Li> <Li> Brad Garrett as Wes Manning: Wes was the television network president tasked with negotiating Kevin's exit from The Manny . </Li> <Li> Jami Gertz as Marin Rosenthal: Marin hired Kate to be an event coordinator . </Li> <Li> Ron Howard as himself: After Howard saw Kevin's play, he called Kevin to praise his performance and offered to send him a script for a new movie he was producing . </Li> <Li> Mario Lopez as himself: Lopez was hosting a talk show discussing Kevin's on - set meltdown . </Li> <Li> Seth Meyers as himself: Meyers saw Kevin and Randall fighting on a New York City sidewalk and approached the pair, recognizing Kevin as a showbiz colleague . </Li> <Li> Elizabeth Perkins as Janet Malone: Rebecca's overbearing mother . </Li> <Li> Katey Sagal as Lanie Schulz: Kevin's Hollywood agent . </Li> <Li> Jimmi Simpson as Andy Fannan: Andy was a co-worker whom Randall talked out of committing suicide on Christmas Eve . </Li> <Li> Alan Thicke as himself: Thicke was guest - starring on The Manny when Kevin had his on - set meltdown . </Li> </Ul> <Li> Susan Blakely as Anne: Dr. K, a widower, dates and marries Anne . </Li>

Who played rebecca's mother on this is us