Dennis Quaid, Kimberly Buffingtom-Quaid

Dennis Quaid filed for divorce from Kimberly Buffington-Quaid on Friday in Los Angeles.

In March, Buffington-Quaid originally filed for divorce, but retracted the papers a month later to work on their marriage. In October, after eight years together, the couple legally separated.

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According to People, Quaid has requested joint custody of their 4-year-old twins, Thomas and Zoe. The Vegas star has also offered to pay spousal support.

This is Quaid's third divorce. He was previously married to Meg Ryan and P.J. Soles.