Rezin Davis Shepherd, known professionally as R. D. MacLean (March 7, 1859 – June 28, 1946) was an American actor.

In 1879, Shepherd made his amateur stage debut in New Orleans as Brutus in a production of Julius Caesar.

He joined Marie Prescott's company in New York City, working in Shakespearean repertoire for seven years.

In 1891, he inherited the Shepherd family estate, Wild Goose Farm near Shepherdstown, West Virginia.

[1] In 1906, the couple retired in West Virginia, but in 1911 they sold the farm and moved to Washington, D.C., and resumed acting.