Kristen Bell

Actress & Film Producer; Known for "Veronica Mars" & "Frozen"

Hilary Swank

Academy Award-Winning Actress; Best known for her roles in 'Million Dollar Baby' and 'Boys Don't Cry'

Sarah McLachlan

Singer-Songwriter & Activist

Neko Case

Neko Case is an American singer-songwriter, best known for her solo career and her contributions as a member of the Canadian indie rock group The New Pornographers

Tamron Hall

Award-Winning Journalist; Former National News Anchor for NBC News; Host of the "Tamron Hall Show"

Watch Where They Hide

Sophia Bush

Actress, Humanitarian & Author

Jillian Michaels

Leading Fitness Expert, Certified Nutritionist, Renowned Life Coach & Powerful Entrepreneur

Jessie James Decker

Country Music Singer-Songwriter, Reality TV Star, Author & Designer

Tim Gunn

Fashion Icon, Former Co-Host & Mentor of "Project Runway"

Alyssa Milano

Actress, Author, Philanthropist & Founder of Touch by Alyssa Milano; Known for "Charmed" and "Who's the Boss"

Leland Melvin

Engineer, Former NASA Astronaut & Former NFL Wide Receiver

Danny Trejo

Actor, Author, Activist & Restaurateur; Recovery & Intervention Counselor for Troubled Youth

Alan Cumming

Emmy-Winning Actor Who Stars in "The Good Wife"

Dr. Jan Pol

Veterinarian; Star of Nat Geo Wild's "The Incredible Dr. Pol"

Dr. Vernard L. Hodges

Veterinarian & Host, Known for National Geographic's "Critter Fixers: Country Vets"

Simon Lovell

English Comedy Magician, Card Shark Actor and Con Man

Ashley Madekwe

Actress & Personal Style Blogger ; Best known for her role on ABC's "Revenge"

Dyan deNapoli

Penguin Expert, TED Speaker & Award-Winning Author of "The Great Penguin Rescue"

Dr. Kwane Stewart

Founder of Project Street Pet, Veterinarian & CNN's Hero of the Year 2023

CNN Hero of the Year makes surprise announcement

Jonathan Balcombe

Author, scientist, and leading animal advocate