Lori Alan (born July 18, 1966) sometimes credited as Lori Allen, is most recently known to do the voice work as "The Boss" in Metal Gear Solid 3: Snake Eater that was released for the Sony PlayStation 2, but she has done other voice work and she is best known in Family Guy as the voice of Diane Simmons, various voices on Hey Arnold!, and SpongeBob SquarePants as Pearl. Lori also plays in one episode of Friends titled The One Where Monica Sings in Season 9. Lori acts as Sonya who does Joey's (Matt LeBlanc)'s eyebrows in the scene and has 4 lines. Along with voice acting, she is also a stand up comic. Alan's sister, Lisa Manning, is a longtime radio personality in Nashville, Tennessee and is currently the morning show co-host on WVNS-FM. (via Wikipedia)