Gotham actor Robin Lord Taylor announced at the WB TV panel at New York Comic Con that Paul Reubens would appear on the show as his character Oswald Cobblepot's father.
Reubens is best known for playing Pee Wee Herman in Pee Wee's Playhouse and its extended franchises.
Reubens has also played Mr. Cobblepot Sr. before, to Danny DeVito's Penguin in Batman Returns.
But his personal resemblance to Gotham's Oswald is kind of uncanny, no?