Harrington has been writing a song a month for the past few years. Most of his profits are donated to various charities throughout the US.
Harrington and Firth first met on the set of Santa Barbara, a popular NBC soap opera, back in the mid-80's. Having been cast as an evil duo of bald-headed monks, they naturally found themselves involved in cult worship, kidnapping and yes, even murder.
Harrington's late father was actor Pat Harrington Jr. Michael's grandfather was actor Pat Harrington Sr.