The present study examined the influence of professor and student characteristics on students' preconceptions of college professors. Course syllabi for a politically charged social science course were constructed with versions varying by teaching style, professor gender, and professor ethnicity. A total of 633 (44% Latino; 34% African American; 22% Anglo) undergraduates rated the course and the instructor on professor warmth, professor capability, and political bias. Among several findings associated with professor ethnicity and teaching style, Latina professors were viewed as more warm when they had a lenient teaching style and less warm when they had a strict teaching style when compared with Anglo women professors with respective styles. Anglo men students perceived professors as more politically biased than did other students. Results are discussed in the context of aversive racism and a double standard of evaluation for Latino professors.