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After 23 years of marriage, "Crocodile Dundee" co-stars Paul and Linda Kozlowski Hogan are ending their marriage, ET has learned.

According to legal documents filed Oct. 9, 2013, the couple has been separated since Sept. 24. The papers, filed by Linda, cite irreconcilable differences as the reason for the split.

Linda and Paul have one child together -- 15-year-old son Chance -- and the 55-year-old actress is asking for spousal support as well as joint legal and physical custody of their teenager.

This marks the third divorce for Paul, 74, who is 18 years older than his estranged wife, Linda. He wed and split from his only other wife, Noelene Edwards, twice. Their first marriage lasted from 1958-1981 and the second went from 1982-1990.

Linda and Paul famously starred opposite each other in the 1986 film "Crocodile Dundee," four years before tying the knot.

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