The band began as a seven-piece with Souza and Billy on vocals, Billy's brother Andy, Greg Bustamante and Steve Robello on guitar, Willy Lange on bass, and Dan Cunningham on drums.

During the recording process of the album in 2007, the band added three more members to the fold: Troy Luccketta on drums/percussion, Steve Souza's brother John Souza on bass, and Phil Demmel on guitar.

For local shows after the album's release the lineup was an eight-piece featuring Chuck Billy and Steve Souza on vocals, Willy Lange on bass, Andy Billy, Steve Robello, Greg Bustamante and John Hartsinck on guitar, and Danny Cunningham on drums.

For the touring of the album, not all of the members could make it across the country and overseas, so the lineup for the tour was trimmed down to Chuck Billy and Steve Souza, John Souza on bass, Dan Cunningham on drums, and Andy Billy, Greg Bustamante and special guest John Hartsinck on guitar.

[1] Performances' lineups usually include a minimum of seven musicians, depending on which band members are available at the time.