| Cas Alfonso | |
| Birth Name: | Alfoncius Dapot Parulian Nainggolan |
| Other Names: | Casanova Alfonso |
| Birth Date: | 1983 5, df=yes |
| Birth Place: | Jakarta, Indonesia |
| Occupation: | Singer-songwriter, composer, |
| Years Active: | 2006–present |
| Label Name: | Independent Label |
| Children: | 1 |
Alfoncius Dapot Parulian Nainggolan (born 23 May 1983) also known as Cas or Casanova Alfonso, is an Indonesian R&B singer.[1]
R&B singer Cas, joined such other musicians as Manissedap, Sultan, Emil, Bembi, Rizki, and Wizzow in 2006 to produce a solo album by the end of 2009. The album contained 12 singles. He performed songs inspired by his love, Rianti Cartwright, such as "Mingle With You" and "You Got What I Need". On this album, he worked with such musicians as Dewi Sandra, Manissedap, and Davadrian.
He and Rianti Cartwright married on 17 September 2010 at Old St. Patrick's Cathedral, New York City. They announced an expected first child in February 2020; Cartwright gave birth to Cara Rose Kanaya, born on 25 July 2020.[2]