Who's Your Favorite Guest-Star On This Is Us?

Gerald McRaney as Doctor Nathan Katowski aka Dr. K

Janet Montgomery as Olivia Maine, Kevin's Broadway co-star

Jon Huertas as Miguel, New Husband to Rebecca (Mandy Moore)?

Jami Gertz - Marin Rosenthal, Kate(Chrissy Metz)'s Boss

Katey Sagal as Lanie Schultz, Kevin(Justin Hartley)'s Agent

Brad Garrett as Wes Manning, Kevin's TV Boss

Ryan Michelle Bathe as Yvette - "The Pool" and "Career Days"

Helen Hunt Directs 1x10 "Last Christmas" on 12/6th

Denis O'Hare as Jessie, William's friend

Sam Trammell plays Ben, ex band member of Rebecca's

Jimmi Simpson as Andy Fannan a trader who works with Randall

Milana Vayntrub - Sloane Sandburg, the play-write

Natalia Cigliuti as Josie Woods, Toby's ex-wife

Wynn Everett as Shelly, Miguel's Wife, 1x05 "The Game Plan"

Alan Thicke, as Himself in the Pilot

Mario Lopez, as Himself, Extra TV Show Host in the Pilot

Seth Myers as Himself, 1x07 "The Best Washing Machine"