Who Are Those Guys? was the first New Riders album to feature Stephen Love on bass guitar. The band's previous bass player, Skip Battin, had left to join the Flying Burrito Brothers. Love, a former member of Rick Nelson's Stone Canyon Band, wrote three of the songs on the album, and sings lead on six of the album's ten tracks. A fourth original song, "Home Grown", was written by drummer Spencer Dryden. The NRPS lineup for Who Are Those Guys? also included John "Marmaduke" Dawson, David Nelson, and Buddy Cage. Until Where I Come From was released in 2009, this was the only New Riders album that did not have any songs written by Dawson.