Gary Sinise

Actor & Advocate for America's Servicemen and Women; Founder of the Gary Sinise Foundation

Andie MacDowell

Actress Known for "Four Weddings & a Funeral;" Heart Health Activist

Peter Thiel

Former CEO and Co-founder of PayPal; Technology Entrepreneur, Investor and Philanthropist

Nick Offerman

Actor, Writer and Carpenter; Best Known for his Breakout Role as Ron Swanson on "Parks and Recreation"

Clay Walker

Country Music Artist, Known For "What's It to You"

Jonathan and Drew Scott (The Property Brothers)

Hosts of HGTV's "Property Brothers"

Kevin Spacey

Two-Time Academy Award-Winning Actor, Director, Producer, Screenwriter and Singer; Best Known For His Roles in "American Beauty" and Netflix's "House of Cards"

Blythe Danner

Emmy Award-Winning Actress & Activist

Mitt Romney

Former Governor of Massachusetts, 2012 Republican Presidential Nominee and CEO

Rob Lowe

Actor, Best-Selling Author, Podcaster & Philanthropist

Rob Lowe Breaks Down His Career - 'Austin Powers' to 'Parks & Recreation'

Russell Wilson

Seattle Seahawks Quarterback

Viola Davis

Academy Award-Winning Actor, Producer & Philanthropist

Viola Davis Gives Commencement Address at Providence College

Shaquille O'Neal

15-Time NBA All-Star Player, Media Personality, Entrepreneur & Philanthropist

Lin-Manuel Miranda

Tony Award-Winning Actor, Composer, & Lyricist; Known for "In The Heights," "Bring it On the Musical" & "Hamilton"

Gary Vaynerchuk

Co-Founder & CEO of VaynerMedia

John Legend

EGOT Winning Musician, Producer & Philantropist

Venus Williams

Professional Tennis Player, Four-Time Olympic Gold Medalist, Equal Pay Activist, Author & Entrepreneur

Seth Meyers

Host of "Late Night with Seth Meyers" & Former Head Writer for SNL

Kevin Bacon

Actor, Musician, Founder of Sixdegrees.org

Alison Krauss

Bluegrass-Country Singer-Songwriter & Fiddle Virtuoso