The study examined relations between caregiver- and child-reported proactive and reactive aggression and psychopathic characteristics (callous/unemotional traits, narcissism, and impulsivity) in a sample of 105 children (69% male) ranging from 6 to 12 years of age (M = 9.61, SD = 1.83) who were admitted to a child psychiatric inpatient facility. Caregiver reports of aggression suggested that proactive and reactive aggression were similarly related to callous/unemotional traits and narcissism but that only reactive aggression was associated with impulsivity. In contrast, child reports of proactive aggression, but not reactive aggression, were associated with all three psychopathic characteristics. Theoretical and clinical implications are discussed. © 2009 International Association for Correctional and Forensic Psychology.