Provided herein are glucagon analogs comprising a modified amino acid sequence of native human glucagon (SEQ ID NO: 2) that exhibit activity at the glucagon receptor, activity at the GLP-1 receptor, or activity at each of the glucagon receptor and the GLP-1 receptor. In some embodiments, the glucagon analog exhibits at least 100% or more of the activity of native glucagon at the glucagon receptor and/or at least 100% or more of the activity of native GLP-1 at the GLP-1 receptor. In some embodiments, the glucagon analog has an EC50 at the GLP-1 receptor which is within 50-fold or less than the EC50 at the glucagon receptor. In some embodiments, the glucagon analog has an EC50 at the GLP-1 receptor which is two- to ten-fold greater than the EC50 at the glucagon receptor. Related conjugates, dimers and multimers, and pharmaceutical compositions, and uses thereof, are further provided.