Trivia

Suggested that his Twin Peaks (1990) character Harold Smith, instead of hanging himself could gas the orchids and himself, and die with all the orchids lying over him. As he came up with this idea quite late, the scene couldn't have been changed, but as a compromise, a scene where Von Dohlen gases the orchids was added.

Good friends with actor Will Patton, Sheryl Lee and Louise Fletcher.

His parents own Von Dohlen Motors, a car dealership in Goliad, Texas.

Attended the 2011 Twin Peaks Festival. (August 2011)

(August 9, 2000) His daughter Hazel was born.

Is an accomplished stage actor.

Attended the 2010 Fall Hollywood Show in Burbank, California, which held a Twin Peaks (1990) reunion. (October 2010)

Attended the 2002 Twin Peaks Festival. (August 2002)

His ancestry included English, Irish, French, German, and German-Jewish.

At 21:56 in the film Resurrection (1980), the characters played by Ellen Burstyn and Roberts Blossom drive through the town square in Goliad, Texas, past the Von Dohlen - Byrd Rexall Pharmacy. Actor Lenny von Dohlen grew up in Goliad, and his family had a business there.

Attended the 2012 Twin Peaks UK Festival in London [October 2012].