Forty-six heterosexual members of a college-based gay/straight alliance organization were surveyed to investigate characteristics of students who commit to acting as allies in reducing sexual prejudice. Assessment focused on the students' history of intergroup contact and exposure to sexual prejudice prior to joining the gay/straight alliance, endorsement of positive stereotypes and immutability beliefs, perception of the ally role in terms of the potential for stigma by association, and level of intergroup communication apprehension. This study yielded a descriptive profile of heterosexual allies. Discussion addresses implications for recruiting and training members of college gay/straight alliances. (Contains 2 notes.)