Thanos - http://www.uwants.com/viewthread.php?tid=14636332

The 15 Best Simpsons One-Off Characters Ranked - https://www.slashfilm.com/607508/the-best-simpsons-one-off-characters-ranked/

An Oral History of Batman: The Animated Series - https://www.vulture.com/article/oral-history-batman-the-animated-series.html