Including: When the phrase

When the phrase " including something" is used, will the plural changed? For example: Everyone is required to wear shoes. Everyone, including the staff, is/are required to wear shoes. The phrase "to include" means to only use, review, or execute the list (or series of things) that come immediately after said phrase. If you use " including " in the sentence, this would imply using, reviewing, and/or executing the item (or list of items) that came before and after the " including " insert. Does this sentence require a comma before including ? He has written on a range of moral issues including poverty, globalization, and euthanasia. When using the phrase " including but not limited to", how should it be punctuated? When used in the following (no punctuation): There are many activities including but not limited to run...