The sixth season of One Tree Hill, an American television series, began on September 1, 2008, and concluded on May 18, 2009, with a total of 24 episodes. This is the third season to air on The CW television network. The season's seventh episode, "Messin' with the Kid" achieved a series high in Adults 18–34 with a 2.7 rating. Season six is the final season for original main cast members Chad Michael Murray and Hilarie Burton. Their characters, Lucas and Peyton, leave Tree Hill with their newborn baby in the finale. Chad Michael Murray would later make a guest appearance in the Season 9 episode "Last Known Surroundings".

Cast and characters

Regular

Recurring

Special guest star

Episodes

Production

The CW announced on March 3, 2008, that One Tree Hill was renewed for a sixth season. It was later reported the season would consist of twenty-four episodes, making it the biggest episode order in the series.

Reception

The season opened to 3.14 million viewers and a 1.6 Adults 18–49 rating. Episode 7 hit series highs in Adults 18–34 with a 2.7 rating, it also hit its second best numbers in The CW's target audience of Women 18–34 with a 4.0 rating. The episode also reached its highest Adults 18–49 rating of the season, with a 1.9, and viewing numbers, having 3.65 million viewers tuning in. The finale was seen by 2.62 million viewers and achieved a 1.3 Adults 18–49. The overall season averaged 2.81 million viewers and ranked #110 with 1.42 rating.

DVD release

The DVD release of season six was released after the season has completed broadcast on television. It has been released in Region 1. As well as every episode from the season, the DVD release features bonus material such as audio commentaries on some episodes from the creator and cast, deleted scenes, gag reels and behind-the-scenes featurettes.