He is best known as Ernie Haase & Signature Sound's long time baritone since the quartet's formation.

As a youth at Lapel High School (the former building, that is), Doug played sports including basketball.

One day, Lighthouse met a group called the Cathedral Quartet, which featured Ernie Haase.

[4] Doug formed part of the American Christian music trio Cana's Voice in 2016.

[5] Anderson was nominated for Male Vocalist of the Year in 2011 by the Gospel Music Association.