Benedict Cumberbatch

English Actor Best Known for "Sherlock;" Ambassador for the Motor Neurone Disease Association

Sarah Silverman

Stand-Up Comedian, Actress, Singer, Producer & Writer

Zosia Mamet

Actress Known for Her Role in HBO's "Girls"

Alison Sweeney

Actress & TV Personality Known for "Days of Our Lives" & "The Biggest Loser"

Ginger Zee

Chief Meteorologist for ABC News, Author & Mental Health Advocate

Chasing Helicity: Through the Storm (The Chasing Helicity Series) (Chasing Helicity Ser...