Eric Stonestreet

Actor & Comedian, Best-Known for "Modern Family"

Kelly Wearstler

Interior and Fashion Designer

Amy Smart

Actress, Environmentalist & Co-Founder of Smart House Collections

Denise Richards

Actress, Former Fashion Model & Reality Star on Bravo's "The Real Housewives of Beverly Hills"

Pamela Anderson

Actress, Model, Producer & Animal Rights Advocate

Pink

Singer-Songwriter, Actress, Philanthropist & Environmental Activist

Paul McCartney

Former Member of The Beatles; One of the Most Successful Composers & Performers of All Time

Mena Suvari

Actress Known for "American Beauty" & Author of "The Great Peace: A Memoir"

Pierce Brosnan

Actor, Producer & Activist; Best Known for His Role as James Bond

Cesar Millan

Host of The Dog Whisperer; Author of Cesar's Way

Lisa Edelstein

Actress, Director, Writer & Producer

Carrie Ann Inaba

"Dancing with the Stars" Judge, Founder of Carrie Ann Inaba Animal Project

Jason Biggs

Actor Known For His Roles in the "American Pie" Series and on "Orange Is The New Black" Among Others

Robert Irwin

Wildlife & Nature Conservationist, Photographer, Author, and TV Personality; Son of Steve Irwin, Owner of Australia Zoo

Robert Irwin Reveals His Most Feared Animal! | The Cheap Seats

Torrey DeVitto

Actress, Model, Ambassador for NHPCO & Advocate

Portia de Rossi

Actress, Known for"Ally McBeal" & "Arrested Development."

Alyssa Milano

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

Jillian Michaels

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

Sarah McLachlan

Singer-Songwriter & Activist

Sophia Bush

Actress, Humanitarian & Author