Bacteria in the genusStreptomycesare found ubiquitously in nature and are known for the number and diversity of specialized metabolites they produce, as well as their complex developmental lifecycle. Studies of the viruses that prey onStreptomyces, known as phages, have aided the development of tools for genetic manipulation of these bacteria, as well as contributing to a deeper understanding ofStreptomycesand their behaviours in the environment. Here, we present the genomic and biological characterization of twelveStreptomycesphages. Genome analyses reveal that these phages are closely related genetically, while experimental approaches show that they have broad overlapping host ranges, infect early in theStreptomyceslifecycle, and induce secondary metabolite production and sporulation in someStreptomycesspecies. This work expands the group of characterizedStreptomycesphages and improves our understanding ofStreptomycesphage-host dynamics.