Protecting your name and image is on you
Even after commercial rights to a finished piece transfer to a client, your right to be credited and your right over your own image are typically treated as separate, personal protections. Asking for attribution and limits on alteration up front, at the contract stage, is what actually prevents violations later.
Sensitive projects deserve a separate written release
Whenever a project involves a real person's face or voice -- yours or someone else's -- treat the likeness release as its own document with its own scope and expiration, rather than folding it loosely into the main service agreement.
Frequently Asked Questions
If I transfer economic rights to a client, do my moral rights transfer too?
No -- moral rights are generally treated as personal to the creator and non-transferable by law, though a contract can sometimes include an agreement not to exercise them in certain situations.
Is it a contract violation if my name is left off the finished work?
If the contract never explicitly requested an attribution credit, this can be a gray area, so if credit matters to you, it is best to write that requirement into the contract clearly at the outset.