Actor Jack McBrayer may be best known for his portrayal of Kenneth the Page on NBC’s “30 Rock,” which includes an accurate impression of Louisiana Gov. Bobby Jindal, after the Republican delivered a much-mocked GOP response to President Obama’s State of the Union address in 2009. But McBrayer’s a Disney star as well. He’s one of the vocal actors for the cartoon series “Phineas and Ferb,” voicing Phineas. That means he’ll be joining Kyle Massey and Chelsea Kane, both Disney actors who have become big names thanks to their strong performances on “Dancing With the Stars,” at a National Press Club event next month. The group includes another “30 Rock” cast member, Maulik Pancholy, who plays Alec Baldwin’s personal assistant and who voices Baljeet on “Phineas and Ferb.” The group will discuss Disney television animation during a panel discussion on July 13 at 7 p.m. Tickets are for sale online: $5 for National Press Club members and children under 12, $10 for others.