He was born on August 25, 1980. At a young age, he became interested in racing. By the age of ten, Atwood was racing go-karts. His early passion for racing later progressed to Late Model Stock racing by the age of 15.

He first appeared on the NASCAR scene in 1996 during a Craftsman Truck Series race, at the age of 16. He would not be back on the scene until 1998, when he raced in the NASCAR Busch Series. He won a pole position at Nashville Speedway USA. He went on to finish second in his first Busch Series race at only the age of 17, making him the youngest driver ever to win a Busch Series pole. By the end of 1998 he had won two poles and 5 top 20's in 11 races.In 1999, he joined the Brewco Motorsports #27 Castrol team for his first full season in the NASCAR Busch Series. He became the youngest winner in Busch Series History when he won at the Milwaukee Mile at the age of 18. He won another race at Dover and acquired two poles. He finished 1999 with two wins, five top 5's and nine top 10's. He finished 13 in points. 2000 proved to be another good year for him, as he managed to have two poles and 8 top 10's, finishing 8th in points.

He moved up to NASCAR Winston Cup in 2001 in the #19 Dodge Dealers car under Evernham Motorsports, which was a nearly formed team under the Dodge banner. He was nicknamed the "Next Jeff Gordon" and was teammate to former Cup Champion, Bill Elliott. Atwood struggled through the year, but improved as the season went on, winning the pole at Phoenix and was in cotention to win the race, before a flat tire ened his day. A week later he was leading with 13 to go, but he got passed by Elliott. Atwood finished 3rd in the Winston Cup Rookie of the Year standings, and 26th in Cup standings.

In 2002, he was moved by his owner, Ray Evernham, into the #7 Sirius Satellite Radio. The #7 team was a team owned by Jim Smith and his Ultra Motorsports team. Evernham made the #7 jointly part of Evernham Motorsports, forming Ultra-Evernham Motorsports. Atwood struggled through the year, having no top 10's, and finishing 35th in points. With two races left in the season, he was fired by Jim Smith and was replaced by Jason Leffler, and later, Jimmy Spencer. Atwood raced the last race of the year in Evernham's #91 Dodge and qualified 10th, but he finished poorly. Also during 2002, Atwood drove an Evernham ARCA car at Pocono and crushed the field, winning the race.

By the time February came around in 2003, he was without a ride. He finally got tabbed by Armando Fitz and Terry Bradshaw to drive the newly formed #14 Navy Chevrolet, as teammate to Kerry Earnhardt, by June. Atwood performed very well, scoring 4 top tens in 14 starts. He also ran two races for Ray Evernham (in Cup) in the #91 Mountain Dew Live Wire Dodge, running well but finishing poorly.

2004 was a mediocre year for Atwood. He ran full-time for Fitz-Bradshaw Racing. He had problems, but he still had seven top 10's. He nearly won at Richmond but got tapped by Martin Truex Jr. with less than ten laps to go, allowing Robby Gordon to win. Atwood was diagnosed by Fitz of having "a lack of confidence and no aggression on the race track". Fitz hired Flip Flippen to be Atwood's psychologist. Atwood was fired by Armando Fitz and Terry Bradshaw with five races remaining in the season. Atwood was 13th in points at the time, and he fell back to 19th. He also drove an ARCA race for Fitz and finished second.

By 2005, Atwood had no ride. He was picked up by Bobby Hamilton (whom some consider to be like a father to Atwood) to drive the first three races of the Craftsman Truck Series season in the #4 Bailey's Dodge. Atwood ran well during the three race stint. Afterward, he was again without a ride. He would be picked up by a past owner, Ray Evernham, to drive the Hungry Driver's Dodge in four races. The four races would be eventful for Atwood as he ran well and gained on top 10.He married longtime girlfriend, Laura, in 2005. They are planning on having a child in late 2005. Atwood currently resides in Antioch, Tennessee.

Contact a speaker booking agent to check availability on Casey Atwood and other top speakers and celebrities.