Kevin Hamilton McDonald (born May 16, 1961) is a Canadian actor, comedian and writer. He is a member of the comedy troupe The Kids in the Hall, who have appeared together in a number of stage, television and film productions, most notably the 1988–1995 TV series The Kids in the Hall. He played Pastor Dave in That '70s Show, and starred as a co-pilot in the 2011 web comedy series Papillon. He also does voice work in animation, most notably as Agent Wendy Pleakley in the Lilo & Stitch franchise, Waffle in Catscratch, and the Almighty Tallest Purple in Invader Zim.