He is a tall, imposing figure (but not taller then his Lead guitarist Skwisgaar Skwigelf) with long jet black hair, black fingernails, pale skin and green eyes. He has a very broad chest and shoulders and stands with a slightly hunched-forward posture. When performing on stage, he sometimes wears black and white corpse paint along with his bandmates. He has a very strong and powerful build and strength.

Nathan Explosion is the leader, frontman, lead vocalist and lyrical visionary of Dethklok. He always speaks in a very deep, grave voice, known as a death growl, even when not singing in public. He is shown to have a dark sense of humor. The things he likes are, ironically, pretty normal, such as going to Disneyland and eating chips, He even has a childlike approach to these things at times. He likes to drink booze, though he doesn't regard it as real "food".

He seems to be the only band member to desire a monogamous relationship (with the possible exception of rhythm guitarist Toki Wartooth), despite the band's fame and fanbase resulting in a large number of "sluts" the band can pick up willingly. He is not above having one-nightstands with his willing and enthusiastic fans, but seen that he is looking for a long-term relationship.

Despite the unofficial "no caring for each other" rule, Nathan does, indeed, care more for his bandmates than he'd like to admit, since he doesn't hesitate to support them in times of need. He is impulsive and violent towards things he dislikes. For example, he once purchased several designer watches with the sole intent of smashing them. He had a habit of flipping tables when upset but soon stopped.

Nathan also strongly dislikes anything that are associated with Dethklok's fans or "regular jackoffs".

Nathan dropped out of school, failing to complete their education due to the educational systems failing to ether acknowledge they have an underlining problem or cater for an individuals needs. However, it is not unheard of for individuals to excel despite their limitations due to excelled talents as is the case of Nathan and his songwriting. He is the only band member with an apparent learning disorder.

It is also possible that Nathan is autistic, as he shows signs of being on the autism spectrum - including literal thinking, an obsessive focus on specific topics of interest (which in Nathan's case is metal music), speech difficulties, and a lack of social awareness🤷🏽‍♂️