Which american entertainer, known for his dedication to fundraising and charity, made his debut at the Copacabana?
Copacabana (nightclub):  Many entertainers such as Danny Thomas, Pat Cooper and the comedy team of Martin and Lewis, made their New York debuts at the Copacabana. Danny Thomas:  In addition to guest roles on many of the comedy, talk and musical variety programs of his time, his legacy includes a lifelong dedication to fundraising for charity.
Danny Thomas