He started his TV-career in the Danish children's show Hvaffor en Hånd?

One of Casper Christensen's characteristics early in his career was his appearance, often including big glasses, whacky hairstyle, and an abstract clothing style.

In this period, Christensen's most notable appearances were Casper & Mandrilaftalen, Tæskeholdet and Safari.

In later years, Christensen has toned down his crazy appearance, and made a career shift towards more serious projects.

Casper Christensen quickly left TV2 Radio and instead began writing on the 5th and 6th season of Klovn with his long-time colleague Frank Hvam.