Tony Marsico (born November 8, 1957) is an American bassist and composer best known as the co-founder of the rock and roll band the Cruzados, formed in 1983, with two albums on Arista Records in 1985 and 1987.
Prior to Cruzados, Marsico was a member of the Los Angeles punk band The Plugz (1980–1983), who were best known for scoring the motion picture Repo Man.
Marsico has also recorded and toured with Bob Dylan, Neil Young, Marianne Faithfull, Roger Daltrey, Joe Ely, Willie Nelson, Linda Ronstadt, Dr. John, Susanna Hoffs, The Thorns, The DiVinyls, John Doe, Peter Case, Juliana Hatfield, Paul Jones, Rick Vito, and Barry Goldberg, among others.
He has written four books: I'm Just Here for the Gig, Late Nights with Bob Dylan, Wild Things and King of Andalusia.
Marsico leads his own jazz band, The Martini Kings, and has released 25 albums, with music appearing in HBO's Entourage and Six Feet Under.