Teller is an American

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 magician

Magic (illusion)

Magic is a performing art that entertains audiences by staging tricks or creating illusions of seemingly impossible or supernatural feats using natural means...

, illusionist, comedian

Comedian

A comedian or comic is a person who seeks to entertain an audience, primarily by making them laugh. This might be through jokes or amusing situations, or acting a fool, as in slapstick, or employing prop comedy...

, writer

Writer

A writer is a person who produces literature, such as novels, short stories, plays, screenplays, poetry, or other literary art. Skilled writers are able to use language to portray ideas and images....

, and the frequently silent half of the comedy

Comedy

Comedy , as a popular meaning, is any humorous discourse or work generally intended to amuse by creating laughter, especially in television, film, and stand-up comedy. This must be carefully distinguished from its academic definition, namely the comic theatre, whose Western origins are found in...

 magic duo Penn & Teller

Penn & Teller

Penn & Teller are Las Vegas headliners whose act is an amalgam of illusion and comedy. Penn Jillette is a raconteur; Teller generally uses mime while performing, although his voice can occasionally be heard during their performance...

, along with Penn Jillette

Penn Jillette

Penn Fraser Jillette is an American magician, comedian, illusionist, juggler, bassist and a best-selling author known for his work with fellow illusionist Teller in the team Penn & Teller, and advocacy of atheism, libertarian philosophy, free-market economics, and scientific skepticism.-Early...

. He legally changed his name

Name change

Name change generally refers to a legal act allowing a person to adopt a name different than their name at birth, marriage, or adoption. The procedures and ease of a name change depend on the jurisdiction. In general, common law jurisdictions have loose limitations on name changes while civil law...

 from "Raymond Joseph Teller" to just "Teller". He is an atheist, debunker

Debunker

A debunker is an individual who attempts to discredit and contradict claims as being false, exaggerated or pretentious. The term is closely associated with skeptical investigation of, or in some cases irrational resistance to, controversial topics such as U.F.O.s, claimed paranormal phenomena,...

, skeptic, and Fellow of the Cato Institute

Cato Institute

The Cato Institute is a libertarian think tank headquartered in Washington, D.C. It was founded in 1977 by Edward H. Crane, who remains president and CEO, and Charles Koch, chairman of the board and chief executive officer of the conglomerate Koch Industries, Inc., the largest privately held...

 (a libertarian

Libertarianism

Libertarianism, in the strictest sense, is the political philosophy that holds individual liberty as the basic moral principle of society. In the broadest sense, it is any political philosophy which approximates this view...

 think-tank organization which also lists his partner Penn Jillette

Penn Jillette

Penn Fraser Jillette is an American magician, comedian, illusionist, juggler, bassist and a best-selling author known for his work with fellow illusionist Teller in the team Penn & Teller, and advocacy of atheism, libertarian philosophy, free-market economics, and scientific skepticism.-Early...

 as a Fellow). The Cato Institute Association is featured prominently in the Penn and Teller Showtime TV series Bullshit!.
Teller was born in Philadelphia, Pennsylvania

Pennsylvania

The Commonwealth of Pennsylvania is a U.S. state that is located in the Northeastern and Mid-Atlantic regions of the United States. The state borders Delaware and Maryland to the south, West Virginia to the southwest, Ohio to the west, New York and Ontario, Canada, to the north, and New Jersey to...

 to parents who were of Russian Jewish and Cuba

Cuba

The Republic of Cuba is an island nation in the Caribbean. The nation of Cuba consists of the main island of Cuba, the Isla de la Juventud, and several archipelagos. Havana is the largest city in Cuba and the country's capital. Santiago de Cuba is the second largest city...

n descent.