Okay, we’ve covered Charlie Sheen quite a lot lately, and there are still more things to talk about regarding the guy. But, how much about Charlie Sheen do you really know?

Charlie Sheen was born Carlos Irwin Estévez on September 3, 1965 in New York City to showbiz celebrities Martin Sheen and Janet Templeton. How did he get his screen name? His dad, Martin, adopted the name Sheen in honor of the Catholic archbishop Fulton J. Sheen. Carlos Irwin followed suit.

Charlie Sheen showed interest in showbiz at an age when most of us are still deeply into Barney. At the age of nine in 1974, Charlie embarked on an acting career in the television movie The Execution of Private Slovik, right alongside good old dad. In high school, his interest in acting continued on with his buddies Rob Lowe, Chad Lowe and Chris Penn. As he continued to pursue his acting career, his school had to expel him just a few weeks before graduation for ‘poor grades and bad attendance.’

Charlie and his parents are not the only ones in the family who have an inclination to entertain. Charlie’s siblings Emilio Estevez, Ramon Estevez and Renée Estevez all shared the same spotlight.

In the past, Charlie became involved in a string of controversial relationships that cost him his credibility. Among the unfortunate events then was when he accidentally shot his then-fiancé, Kelly Preston, in the arm, ending their relationship afterwards.

Here are some more interesting trivia on Charlie Sheen from IMDB.com:

• Was born a ‘blue baby.’ The doctor who saved him was named Irwin and his parents named him after the doctor.
• He fought constantly with older brother Emilio Estevez.
• He was a good student but then let his grades slip when he skipped school in high school to play baseball.
• He had dreams of pitching for a baseball team.
• Listed as one of twelve “Promising New Actors of 1986″ in John Willis’ Screen World, Vol. 38.
• Was considered for Tom Cruise’s role in Born on the Fourth of July (1989).
• His first film with George Clooney stayed unreleased because of FX problems.

Throw in the swanky shirts he wears as a Two and a Half Men co-lead, and you’ve definitely got to love Charlie Sheen for staying cool and popular after all these years.