Despite their best efforts, the Quaids couldn't make it work Dennis Quaid's wife, Kimberly Quaid filed a divorce petition in L.A. Tuesday "After careful consideration, we have decided to end our 12-year marriage," the exes told TMZ in a joint statement "The decision was made amicably and with mutual respect toward one another. The Quaids plan to share custody of their 8-year-old twins, son Thomas and daughter Zoe