Donald James Marshall (May 2, 1936 – October 30, 2016) was an American actor best known for his role as Dan Erickson in the television show Land of the Giants.

Marshall was still in the army at this time,[2] but later studied acting at the Bob Gist Dramatic Workshop, while taking a course in theatre arts at Los Angeles City College.

[7] Also in 1964, Marshall took the role of Chris Logan, playing opposite Nichelle Nichols in CBS Repertoire Workshop episode titled "Great Gettin' Up Mornin'", a made-for-TV-movie about an African-American family preparing their children for their first day at a racially integrated school in America's South.

As a result of appearing in Premiere in the episode "Braddock", the actor met Irwin Allen, leading to Marshall gaining his role in Land of the Giants, in which he performed alongside Gary Conway, Don Matheson, Kurt Kasznar, Stefan Arngrim, Deanna Lund, and Heather Young.

[12] The only other African-American actors to be in such a position in the 1960s were Nichelle Nichols, known for her role as Lt. Uhura in the TV series Star Trek, and Greg Morris as electronics expert Barney Collier in Mission: Impossible.

In one of the episodes, "Ghost Town", while diving over a fire, Marshall actually dislocated his shoulder and the next day had to shoot new scenes with his arm in a sling.

The film also starred Ken Berry, Jim Hutton, Ralph Meeker, Cameron Mitchell, and Trini Lopez.

[5] Marshall was subsequently cast in the role of Dr. Fred Williams in the science-fiction horror exploitation film The Thing with Two Heads (1972), which starred Ray Milland and Rosey Grier.

In the 1980s, Marshall had few roles, appearing occasionally in episodes of Little House on the Prairie as Caleb Ledoux, as Doctor Jim Blair in Finder of Lost Loves, and as Senator Ed Lawrence in Capitol.

After he retired from acting, Marshall set up his own company called DJM Productions, Inc., which produced television commercials and documentary films.