In one aspect, the invention relates to compositions comprising stapled peptides, methods of making same, pharmaceutical compositions comprising same, and methods of treating various diseases, including, but not limited to, metabolic disorders such as diabetes, and cancers. The disclosed compounds comprise stapled peptides, including, but not limited to, stapled glucagon, axin, and p53 peptide homologues, which are useful as therapeutic agents for a variety of diseases as disclosed herein. The disclosed methods are useful in the preparation of a variety of stapled peptides, including stapled peptide homologues of glucagon, axin, and p53. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.