Garrett Reisman

Astronaut, Professor of Astronautical Engineering at USC & Senior Advisor at SpaceX

Kunal Nayyar

Actor Known for "The Big Bang Theory"

Kate Mulgrew

Actress Known for "Star Trek: Voyager" & "Orange Is the New Black"

Kate Flannery

Actress, Singer & Writer, Best-Known for her Role on "The Office"

Alonzo Bodden

Winner of NBC's "Last Comic Standing"; Regular Panelist on NPR's "Wait Wait ... Don't Tell Me"

Valerie Bertinelli

Actress & Jenny Craig Brand Ambassador; Starred in Sitcom "Hot in Cleveland"

Eden Sher

Actress know for starring on the ABC Series "The Middle"

Phil Keoghan

Emmy-Award Winning Producer & TV Personality, Best Known as the Host of "The Amazing Race" & "Tough as Nails"; Multiple Sclerosis Advocate

Tatyana Ali

Actress, Singer & Activist; Best Known for "The Fresh Prince of Bel-Air"

Melissa Gilbert

Actress, Author, Activist

DC Young Fly

Comedian from MTV's Wild N Out

Tyne Daly

Tony and Emmy Award Winning Actress

Brooke Burke

Former Host of "Dancing With The Stars", CEO of ModernMom.com & Thyroid Cancer Survivor

Rhea Perlman

Emmy Award-Winning Actress Best Known for her Role in 'Cheers'

Ann Dowd

Award-Winning Actress Known for "The Handmaid's Tale" & "Mass"

Ann Dowd On How Linda Takes Steps Forward in Mass

Ally Sheedy

American Film and Stage Actress, and Author of Two Books

Martha Plimpton

Actress, Singer, Reproductive Rights Advocate Known for "Raising Hope"

Ming-Na Wen

Chinese Actress; Agent Melinda May on Marvel's "Agents of S.H.I.E.L.D."

Lea Thompson

Actress, Director & Producer Known for "Back to the Future" Films and "Switched at Birth"; Alzheimer's Awareness Advocate

Esai Morales

Award-Winning Actor & Activist

Tom Cruise, Esai Morales, Simon Pegg & Cast Talk 'Mission: Impossible

Michael Dorn

American Actor & Voice Artist. Known for his role as "Klingon Worf" in Star Trek

Samira Wiley

Actress; Best Known for Her Role in "Orange is the New Black" & "The Handmaid's Tale"

Bill Bellamy

Comedian and Actor best known for Russell Simmons' Def Comedy Jam

Loretta Devine

Emmy Award Winning Actress Best Known for "Grey's Anatomy"

Lorraine Bracco

Actress known for "The Sopranos" & HGTV Host

Josh McDermitt

Actor and Comedian; Plays "Eugene" on AMC's The Walking Dead.

David Burtka

American Actor & Chef, Husband of Neil Patrick Harris

Michael Blackson

Stand-Up Comedian

Richard Karn

Actor, Best Known for his Role on "Home Improvement"

Steve Schirripa

Actor, Producer & Author; Best Known for "The Sopranos"