The following year, at the age of 22, he made his solo debut at Det Norske Teatret (The Norwegian Theatre) in Oslo, in the Norwegian original cast of Les Misérables, the third Cameron Mackintosh Les Mis production in the world.

In Norway he became known during the 1990s through Norwegian Broadcasting Corporation (NRK), especially on the weekly satire Egentlig, an equivalent to Saturday Night Live.

He was also well known for his many dubbing film voices, such as Timon in the Norwegian version of The Lion King.

In 2010, he won the Norwegian version of Strictly Come Dancing, called Skal vi danse.

On 12 February 2017, while in Brussels visiting family, Engmark died suddenly due to an undisclosed medical emergency.