"Clark Gregg (visual voices guide)". Behind The Voice Actors. Retrieved September 29, 2024. A green check mark indicates that a role has been confirmed using a screenshot (or collage of screenshots) of a title's list of voice actors and their respective characters found in its credits or other reliable sources of information.
carrborocitizen.com
Dickson, Robert (December 1, 2011). "CAUGHT ON FILM". Carrborocitizen.com. Retrieved November 18, 2014.