Fan Casting ''The Man in The Bar'' in My Adventures With Batman (Season 3)

In the Post-Credits Scene for the finale, we see a disgruntled man in a bar pounding several alcohol shots all at once, when one of his drinking buddies shouts: ''Yo, Slade! Take a look at this!'' and then shows the man the news of Gotham being half-frozen. The man, although severely drunk, looks at his friend's phone for a long moment, and then mumbles to himself: ''I've finally found you, old friend.'' before leaving the bar, stumbling on the way out.