The late actor's Kill Bill co-stars Lucy Liu, Michael Madsen and Daryl Hannah, along with Jane Seymour and Tom Selleck, led tributes to the 72-year-old, who died in Bangkok ten days ago.
Around 400 people turned out to pay their respects to Carradine at a private burial in Los Angeles on Saturday. The event was invitation-only and closed to the media.
According to reports, the order of service showed a picture of the Kung Fu star smiling on the front page, with the back page containing a sketch of him accompanied by the lyrics to the Allman Brothers Band's 'Midnight Rider'.
Other songs played during the memorial included the Beatles's 'Let It Be' and Beethoven's 'Requiem For A Fallen Hero'.
Carradine was found hanging semi-naked in a Bangkok hotel room on June 4, leading to suspicions that his death might have been caused by an auto-erotic asphyxiation game gone wrong.
Last week, a forensic expert hired by Carradine's family ruled out the possibility that he had taken his own life. The investigation continues.