With the recent expansion of public interest law, 'standing' is a surprisingly active and developing area of basic law. As well, administrative tribunals themselves typically have the right to be heard in an appeal or judicial review from their own decisions, [eg. RTA 210(3)], and sometimes even have the right to commence an appeal by themselves [eg. RTA 211].
Standing - Private Interest Standing
Standing - Personal Capacity v Representative Capacity
Standing - Suing Yourself!
Standing - Tribunal Standing on JR/Appeal [cross-linked to 'Administrative Law']
Standing - 'Non-Parties'
Public Interest Standing
Standing - Public Interest Standing (+)
Age of Majority and Accountability Act
RCP Rule 7 - Parties Under Disability