Silver Sentry is the Superman analogue in the animated universe of the Teenage Mutant Ninja Turtles. His first appearance is in an episode of the series entitled, “The Unconvincing Turtle Titan” In the episode, Michaelangelo of the TMNT, tired of playing the Ninja role, decides he wants to be an actual Superhero. Seeking the spotlight and calling himself Turtle Titan, he goes out looking for trouble. During this adventure he meets Silver Sentry and ends up having to battle him when he becomes mind controlled by his arch nemesis. In the end they team up to defeat the bad guy.
Silver Sentry shows up a few more times and in more than one of TMNT animated series, once briefly as a member of the Justice Force, another time on a Christmas episode and another as a small flying robot remote controlled by one of the Turtles. In one other episode he shows up only in a questionable flashback as it appears that in the future his son becomes the new Turtle Titan. His powers seem to be the standard for Superman type heroes including super strength, super speed, invulnerability, and super vision. He also has a fondness for chocolate cookies.
Despite his few appearances, he must have had an impact as he did rate a small action figure which is still available. He was positive, powerful, and a good role model. My research does not show him every appearing in an actual TMNT comic except as an actual comic book character. Below is the episode of Silver Sentry’s first appearance. Enjoy!