Jim Berger and Keith Buckley, both are American?
Jim Berger (singer) Jim Berger (born 19 May 1974) is a Swedish black metal singer who goes by the stage name All. His original project was Abruptum. He also performed in many side projects, including Ophthalamia, Vondur and War, usually with Tony Särkkä.
Jeff Barker (playwright) Jeff Barker (born 1954) is an American playwright, director, professor, and actor. He has written plays such as "Kin", "Unspoken for Time", and "September Bears". He is an advocate for the restoration of the ancient plays of Israel, co-creating "Terror Texts" (with composers Joseph Barker and Heather Josslyn-Cranson) and "And God Said" (with composer Ron Melrose).