All of the following leaders disagreed with the Separatists EXCEPT John Calvin Elizabeth I Philip II James I?

All of the leaders mentioned had differing views on the Separatists, but John Calvin did not directly oppose them; rather, he had his own distinct theological approach. Elizabeth I, Philip II, and James I actively opposed the Separatists, viewing them as threats to the established order and unity within their realms. In contrast, Calvin's emphasis was more on reform within the church rather than outright separation. Thus, the answer is John Calvin.