Trivia

Has a scar across the solar plexus because of an operation when he was only one month old

Founded Make-Believe Entertainment with fellow actor Claus Lund

Distant relative of Solveig Sønderholm, who through many years recorded and sang with Danish folk singer Richard Ragnvald during the 60s and 70s

Graduate from the Russian/Danish acting school "TeaterStudio" from 1998-2001

[January 2000] Committed to Skejby sygehus (hospital) outside Aarhus, Denmark with a fatal blood poising that would have killed him had he been committed one day later. After undergoing dialysis and having all blood changed for weeks and being under careful observation for months, he was finally declared healthy in June 2000. Ironically enough, this was where his acting career started taking shape for real.

Old personal friend from the army days of author Yakov Munkebo. Kim Sønderholm Andersen used the friendship very much of a basis for the work with his character in the war shortfilm Hjemkomst (2004). Munkebo's book "Krig tur/retur" is also about these experiences.

Shared an apartment in Copenhagen for over a year from 2004-2006 with longtime friend and colleague Mads Koudal

Besides being a big fan of horror/slasher films, his favorite films include: Natural Born Killers (1994), Lost Highway (1997), Mulholland Drive (2001), Se7en (1995), The Crow (1994), American History X (1998), Requiem for a Dream (2000), The Machinist (2004).

He is also a great fan of Trent Reznor (aka Nine Inch Nails) and David Bowie.

Sønderholm used bits and pieces from the segment "Invasion of Privacy" (of which he directed himself) from The Horror Vault 2 (2009) in a music video competing at the Nine Inch Nails announced online music video festival "Ghosts" in march 2008. The used parts in the music video were however censored, while the full version of the segment released in The Horror Vault 2 (2009) was released in the uncut version.

During filming of Tour de Force (2010), in the scene where Frank, played by Kim Sønderholm, is hit over the head with a bottle, his expression of pain is quite real as the fake bottle turned out to be a lot harder than it was supposed to be. Sønderholm actually blacked out for a few seconds before regaining his conscience and continued acting. This clip is used in the actual film as strongly insisted by Sønderholm.

Nominated as one of twelve up and coming actors to be Scary Stud of The Year 2008 by Pretty/Scary Magazine. Came in as #4 with 142 votes of a total of 1525 votes.

While doing various acting jobs, currently working on two feature films as a director, Tour de Force (2010) which has been in the works for about a year, and a side project named Little Big Boy (2012) which is gonna be a horror comedy setup as a mockumentary about a seemingly successful film director who encounters nothing but problems. (January 2009)

Having been tired of his looks for years, Sønderholm spend most of 2012 on a strict diet and training scheme resulting in him losing over 60 pounds over the course of the year. "I have been lifting weights on and off for years, but never anything this regularly and planned out" says Sønderholm, "It's taken quite a bit of restraint and demanded me taking a lot of control in the process, but I'm really happy I finally got around to do something about it. I'm finally happy with the way I look now, and can only wish I got around to it at an earlier place in time." (November 2012)