Former guitarist of Cedar Falls band 'Hostage Boy'.
Gained theatrical experience in the "47 Seconds" Drama Troupe which advocated the prevention of child abuse and domestic violence.
Former guitarist for band 'Hostage Boy' of Cedar Falls, Iowa, with one demo released to date.
One of two actors who attended Cedar Falls High School and community acting classes and went on to be in professional film. The other, Troy Boleyn (aka T.G. Boleyn), was an actor in the "47 Seconds" drama troupe with Mosley. Both are advocates for child-abuse prevention.
Attended The American Academy of Dramatic Arts in New York from 1998 to 2001.
First professional job was as Joseph Gordon-Levitt's understudy in the (New York) off-Broadway premiere of Austin Pendleton's "Uncle Bob". The play also starred George Morfogen and was produced by Steven Sendor.
Although he only appeared in four episodes, his role as Jerry Tyson/3XK is one of Castle (2009)'s most popular recurring antagonists.