Four specific personality factors have been theorized to put adolescents at risk for alcohol abuse: hopelessness (HOP), anxiety sensitivity (AS), sensation seeking (SS), and impulsivity (IMP). We examined relations of these personality factors to various alcohol-related indices in a sample at high risk for alcohol problems—specifically, a child welfare sample. Adolescents (n = 197; mean age = 16.8 years; 43% males) receiving services through Ontario Child Protective Services participated. Personality was assessed with the Substance Use Risk Profile Scale (SURPS). Alcohol-related outcomes were assessed with the Ontario Student Drug Use and Health Survey (OSDUHS). Results showed that, consistent with theory, HOP, SS, and IMP were all positively correlated with overall drinking levels and overall alcohol problems on the OSDUHS. Unexpectedly, AS was negatively correlated with overall drinking levels and was unrelated to the OSDUHS overall alcohol problems factor. Consistent with hypothesis, HOP was related to an increased likelihood of receiving treatment for an alcohol problem. But, despite greater drinking levels and alcohol problems, IMP was related to a decreased likelihood of receiving alcohol treatment. In addition, SS and HOP were related to earlier onset drinking. Additional exploratory analyses revealed that AS was positively associated with difficulties stopping drinking and negatively associated with discussing such difficulties with school personnel. Implications for treatment and prevention of heavy drinking and alcohol problems in child welfare youth are discussed.