Can an intervenor be a party to an appeal?

An intervention is limited. An intervenor is a non-party who has standing in a proceeding. An intervenor does not usually have the right to appeal. In criminal law, the only parties are the Crown and the accused (Dagenais v. Canadian Broadcasting Corporation, 1994 CanLII 39 (SCC), [1994] 3 S.C.R. 835). Various case precedents cited during the motion present unique factual situations where one category of person is granted intervention, but in no case does an intervenor acquire the right of appeal as a party.