Brennan is a very successful leader at Hollywood Senior High School. Adviser George Hayes explains that "Due to his energy and innovation as CSF president, membership has more than doubled." "One of Brennan's goals ... was encouraging members to be actively involved in community service. Under his guidance, the chapter participated in the Los Angeles AIDS Walk, clean up of a ... park, and a convalescent home visit." Brennan loves anime and manga, claiming that some of his sense of duty and commitment to improve his community comes from the inspiration of heroic characters. He explains "I saw things that I wanted to change, and I saw club membership as a way to do that." More of Brennan's service to the greater community was detailed in teacher and Community Service Club sponsor James Carmicle's letter of recommendation. He proudly relates that Brennan gave an exceptional "presentation to members of Los Angles' Metropolitan Water District, arguing that citizens should rethink the ways that water is used and conserved for now and future generations. -Community service, indeed!"
