René Echevarria is an America

United States

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

n-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 screenwriter

Screenwriter

Screenwriters or scriptwriters or scenario writers are people who write/create the short or feature-length screenplays from which mass media such as films, television programs, Comics or video games are based.-Profession:...

 and film producer.
Echevarria began his career as an amateur screenwriter submitting unsolicited scripts to the producers of Star Trek: The Next Generation

Star Trek: The Next Generation

Star Trek: The Next Generation is an American science fiction television series created by Gene Roddenberry as part of the Star Trek franchise. Roddenberry, Rick Berman, and Michael Piller served as executive producers at different times throughout the production...

. After using a few of his stories, they hired him as a writer. He then became a regular contributor to Star Trek: Deep Space Nine

Star Trek: Deep Space Nine

Star Trek: Deep Space Nine is a science fiction television series set in the Star Trek universe...

. He has written for Star Trek: The Next Generation

Star Trek: The Next Generation

Star Trek: The Next Generation is an American science fiction television series created by Gene Roddenberry as part of the Star Trek franchise. Roddenberry, Rick Berman, and Michael Piller served as executive producers at different times throughout the production...

and Star Trek: Deep Space Nine

Star Trek: Deep Space Nine

Star Trek: Deep Space Nine is a science fiction television series set in the Star Trek universe...

as well as the TV series Now and Again

Now and Again

Now and Again is an American television series that aired in the US from September 24, 1999 until May 5, 2000 on CBS. The story revolves around the United States government engineering the perfect human body for use in espionage, but not being able to yet perfect the brain...

, Castle

Castle (TV series)

Castle is an American comedy-drama television series, which premiered on ABC on March 9, 2009. The series is produced by Beacon Pictures and ABC Studios. On January 10, 2011, Castle was renewed for a fourth season...

, Dark Angel

Dark Angel (TV series)

Dark Angel is an American biopunk/cyberpunk science fiction television series created by James Cameron and Charles H. Eglee. The show premiered in the United States on the Fox network on October 3, 2000, and was canceled after two seasons...

and Medium

Medium (TV series)

Medium is an American television drama series that premiered on NBC on January 3, 2005, and ended on CBS on January 21, 2011. Themed on supernatural gifts, its lead character, Allison DuBois , is a medium employed as a consultant for the Phoenix, Arizona district attorney's office...

, and is co-creator and writer of The 4400

The 4400

The 4400 is a science fiction TV series produced by CBS Paramount Network Television in association with Sky Television, Renegade 83, and American Zoetrope for USA Network. The show was created and written by Scott Peters and René Echevarria, and it stars Joel Gretsch and Jacqueline McKenzie...

.