Dennis Casper Janebrink, born 2 January 1970 i Biskopsgården Parish in Göteborg, Sweden. He plays sings and the bass in Arvingarna.
Casper Janebrink is the son of Dennis Janebrink and Ing-Marie. He grew up in Partille.
In 1993, the Arvingarna song Eloise won Melodifestivalen. With Arvingarna, he has participated at Melodifestivalen five times.
In 2011, he participated in Körslaget with a choir from his home municipality of Partille. In 2018 he won Stjärnornas stjärna, which aired over TV4. He presented Bingolotto on 7 February, 2016.