Since 1962, Theodore Waddell has shown work in hundreds of national and international exhibitions. His work is permanently represented in over 80 U.S. embassies and public collections and also within the private collections of Ringo Starr and Robert Redford.

Waddell's body of work is influenced by his ranching life in Montana. Layers of thick oil paint and encaustic are combined to create paintings that are multidimensional and impressionistic.