Actress Jill Whelan has filed for divorce to end her 10-year marriage. The Airplane! star, 47, has cited irreconcilable differences for the split from Michael Chaykowsky. She is seeking spousal support and full legal and physical custody of their son Grant, who turns eight on 1 July (14), reports TMZ.com. Whelan has another son, named Harrison, from her first marriage to Brad St. John.