In order to recognize behavioral patterns in children and adolescents at risk for developing bipolar disorder, this study examined Child Behavior Checklist (CBCL) profiles of bipolar offspring both with (BD group) and without ("at-risk" or AR group) bipolar disorder themselves. The BD youth had three CBCL subscale T scores greater than or equal to 70 (attention problems, delinquent behavior, and aggression) and scored significantly higher than healthy comparison youth on all CBCL subscales. AR youth did not have any T scores greater than or equal to 70; however, they scored higher than healthy comparisons in the anxiety/depression, attention problems, aggression, and withdrawal subscales. AR and BD youth differed significantly on all scales except somatic complaints and anxiety/depression.