Trivia

Speaks rudimentary German and Japanese. The scene in Season 4 of Supernatural where Bobby is revealed to speak Japanese was included at his suggestion. What he says in Japanese translates into English as "Since before you were born, ya idjit.".

As of 7/7/07, was the seventh most prolific writer of IMDb plot summaries and the seventh most prolific writer of IMDb mini biographies.

His father was of French and English heritage (the family name was originally de Beauvoir - changed to Bieber when the family fled to Germany to escape the Huguenot persecution, and Beaver is a distant cousin of author and philosopher Simone de Beauvoir and Pennsylvania Governor General James A. Beaver), and his mother is Scots-German-Cherokee and a descendant of senator, governor, and three-time U.S. Attorney General John J. Crittenden, in turn a first cousin twice removed of Thomas Jefferson, and whose first wife was a third cousin of Robert E. Lee's father and of Zachary Taylor.

At this writing (2018) is preparing a definitive biography of Superman actor George Reeves. He recently served as historical consultant on the film about Reeves' life, Hollywoodland (2006).

Nominated for Best Guest Performer in a Drama Series at the 2013 Broadcast Television Journalists Awards, for his performance as Sheriff Shelby Parlow in season 4 of '"Justified' (2010)'.

Worked at Frontier City Theme Park in Oklahoma City as a gunfighter.

His Star Trek: Enterprise (2001) character, Admiral Leonard, was named after Leonard Nimoy.

Son-in-law of the late comedic actor and voice-over performer Don Adams.

Plays a character on Deadwood (2004) named Whitney Ellsworth, which was the name of the producer of Superman (1952), which starred George Reeves. Beaver is preparing a book-length biography of Reeves.

Studied acting with Clyde Ventura and Maximilian Schell.

Daughter Madeline Rose Beaver born. (August 19, 2001)

Son of James Norman Beaver, Sr. (1924-2004), a minister, and wife Dorothy Adell Crawford. Has three younger sisters: Denise, Reneé and Teddlie.

Formerly married to Milwaukee radio personality Debbie Young.

Lived with Hank Worden for several years.

Starred in the theatrical play "If All the Sky Were Paper" narrated by Garrett Schweighauser alongside Annette Bening, Laura Dern, Gary Cole, Christopher Sweeney, and Michael Conner Humphreys.

Is a member of Theatre West in Hollywood, CA where he workshops original stage material, including "The Ox-Bow Incident" that he adapted. He also hosted a stage reading of "It's A Wonderful Life" with actor Ewan McGregor at the Will Geer Theatricum Botanicum during Christmas 2024.