Brendan McCreary a musician and singer who has contributed to the Re-imagined Series's various musical scores, as well as brother to Bear McCreary, the series' composer.
In Battlestar Galactica, he worked on the United States version of the title theme for Season 1 "The Cylon Prisoner" track for Season 2's "Pegasus", and sung the vocals to the Colonial version of "All Along the Watchtower" for Season 3's finale, "Crossroads, Part II and composed the soundtrack for Defiance and lastly is the lead singer for the The Mystic Knights of the Oingo Boingo, a performance art group.

Brother is Bear McCreary (born February 17, 1979) is an American composer and musician living in Los Angeles, California. He is best known for his work on the reimagined Battlestar Galactica television series and for the TV series Outlander and The Walking Dead. McCreary won an Emmy for his main title of Da Vinci's Demons. His most recent Emmy nomination was in 2015 for Outstanding Music Composition for a Series for season one of Outlander.