Bah humbug! Theatre Three, 412 Main St., Port Jefferson will hold open auditions for ages 8 to 17 for its upcoming production of “A Christmas Carol” on Tuesday, Sept. 20 at 7 p.m. A Christmas carol, “Christmas Is Coming,” will be taught. Nine roles will be double cast (for a total of 18 young people). Rehearsals begin late September and are weeknights at 7 p.m., Saturday mornings or afternoons and Sundays (morning, afternoon or evening). Young people must appear in half of the performances, including the student matinees. Performances will be held on the Mainstage from Nov. 19 to Dec. 30. For more information, call 631-928-9100 or visit www.theatrethree.com/auditions.html.