Mireille joined The Train to co-host with Denis Rancourt in December 2008. Since then Mireille has brought her vibrant activism, feminist, graduate student, and dedicated professional services perspectives as well as her extensive knowledge of both student life and university governance to the show. In real life, Mireille is a graduate student in law at the University of Ottawa and is the director of the student federation’s (SFUO) Student Appeals Centre (SAC). Due to her eclectic music tastes, she has also de facto become the show's music-break editor.
Denis joined co-hosts Chris Jack and Jack DeJong as a co-host on CHUO’s Train in July 2005. Denis took up the activism/politics portfolio whereas Chris and Jack did the alternative arts scenes and community building portfolios, respectively. In August 2006 Denis became the only host of The Train until he was joined by Mireille Gervais in December 2008. Denis is the former tenured physics professor who developed the popular “Activism Course” at the University of Ottawa and is a public intellectual who has concentrated on social justice activism in modern society.