Technical Abstract: Sorghum represents a broad category of plants that includes those grown primarily for forage (FS) or grain. Sorghum sudan crosses (SS) are also considered sorghum. Each of these groups can be further classified as brown midrib (BMR), nonBMR, photoperiod sensitive (PS), and nonPS. In our study, sorghum classes representing multiple cultivars were compared for forage and grain yield, agronomic characteristics (i.e. height, lodging, moisture at harvest), nutrient composition, and fiber digestibility. Although some overlap between cultivars of different sorghum classes was detected, clear tendencies in yield and forage quality characteristics between sorghum classes were observed. The SS-PS class had the highest forage yield of all classes, and the nonBMR classes consistently yielded more than those with the BMR trait. Grain yield varied greatly among the FS and FS-BMR cultivars, with some FS cultivars yielding as much as those in the grain class. Those sorghum classes with the BMR trait consistently had the lowest acid detergent fiber (ADF) and neutral detergent fiber (NDF), and as expected were lower in lignin content. The BMR trait also increased digestibility of the NDF fraction (NDFD). In-vitro-true-digestibility (IVTD) was highest with FS-BMR and grain sorghum (Grain) classes followed by the FS, FS-PS-BMR, and SS classes. The SS-PS consistently had the lowest IVTD. Very little correlation was present between grain yield and IVTD. Lodging was not increased in BMR cultivars compared to the nonBMR cultivars when harvested at the soft-dough stage. There was little correlation between lodging and lignin content, grain yield, or plant height.