Well, since TOL advocates open theism and MAD, the "Theology Online Mount Rushmore" would be of the following men:
Richard Rice - Open theist, and inventor of the term "open theism"
John Nelson Darby - Inventor of dispensationalism
E. W. Bullinger - Inventor of Mid-Acts-Dispensationalism
Bob Enyart - Took the teachings of the above three men, and joined them all together.