Jack Hanna got his first job when he was eleven years old working for the family veterinarian in Knoxville, Tennessee, and developed a great respect and love for all animals. In 1978, the Knoxville, Tennessee native was named director of the Columbus Zoo after answering an advertisement. His first appearance on Good Morning America was in 1983 when the invitation to appear came after the birth of baby twin gorillas at his zoo and, he has been a regular guest and wildlife correspondent ever since.

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Born November 8, 1985 in London England, Jack Osbourne is a producer and actor, probably best known as the son of Ozzy and Sharon and a star of MTV’s reality series The Osbournes (2002-2005) along with his father, mother and sister Kelly. Osbourne pursued a career as a fitness and travel reporter on shows such as Jack Osbourne: Adrenaline Junkie (2005-2009) and BBC’s Saving Planet Earth (2007).

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Fifty-five year old Maryland resident Pat Brown is one of the few women profilers who assist police departments and victims’ families by analyzing physical and behavioral evidence to make determinations about crime suspects. She is also a television commentator, author, and founder and CEO of The Sexual Homicide Exchange.

Read more on Pat Brown Interview: 'Van der Sloot Most Likely Date Rapist with Rage Problem'…