Kasper started his career at Grorud IL, playing for every age-group until he was 18 years old. He played a numerous games for U19 without getting an official game for the first team. He then moved to city rivals and 3rd division side Romsås IL, where he played 10 games and got 1 goal. In 2013, he signed for NCEL Toolstation division 1 club Selby Town, playing 15 games for the club before signing for Frickley Athletic. Kasper Signed for Frickley Athletic 1.February 2014.