He graduated from Deering High School in 1985.
He has appeared on The David Letterman Show,, and Comedy Central. He can be seen in the film The Boondock Saints. He also goes by the name "Billy".
In an interview for Columbus Alive, Marley said that his “dad had no idea there was a singer named Bob Marley.” Marley then went on to attend the University of Maine at Farmington.
However, even in college, he knew that he wanted to pursue comedy as his career. Marley"s comedic bits are mostly about life in Maine.
Bob Marley"s first television appearance was on Comedy Central. He also appeared as Detective Greenly in the movie The Boondock Saints, and reprised his role as Detective Greenly in The Boondock Saints II: All Saints Day.
He has hosted on XM Radio channels 97, Blue Collar Radio, and 99, RawDog Comedy.
And, as of 2013, appears weekly on Coast 93.1-WMGX in Portland, Maine, in a segment called "The World According to Bob.".
On Thursday, September 23, 2010, at 11:02pm EDT, Marley entered the Guinness Book of World Records with the longest continuous standup routine, beating the record held by Lindsay Webb from Australia. He completed 40 hours of standup comedy, the first 17 hours and 14 minutes without any repetition of material. Marley"s record was broken by David Scott on April 30, 2013 with a time of 40 hours and 8 minutes.