Cell biologist, Kenneth R. Miller, can be deemed the poster boy for the defense of conventional evolutionary theory against creationists and proponents of Intelligent Design. He has co-authored a standard biology high school text book for teaching evolution in public schools and has served as a key witness in landmark court cases that rejected the claim the Intelligent Design should be taught in public schools. He is probably the most in demand pro-evolution speaker on the public lecture circuit.
Yet to me great amusement, many evolutionists apparently do not realize that Miller is a devout Catholic who believes in God, miracles, an answers to prayer. See e, g,
http://www.pbs.org/wgbh/evolution/library/08/1/l_081_01.html