Trivia: The asylum to which Lex is taken at the end of the episode is called "Belle Reve," which is French for "beautiful dream." It is also the name of the family mansion that once belonged to Blanche and Stella DuBois in "A Streetcar Named Desire." The mansion was lost, but it was the one memory to which Blanche clinged throughout her descent into madness. Belle Reve is also home to many lesser powered super villains in the DC universe, including some of Superman's enemies.
Trivia: Michael McKean, who guest stars as Perry White, is married to Annette O'Toole, who plays Martha Kent.
Trivia: When at Molly's, Lex tells Clark she sent another email and asks if Clark recognized it, which belongs to Martha Kent. The email address is "CNH320@instamail.org." CNH 320 was the license plate number of the General Lee in "The Dukes of Hazzard" (which stars John Schneider who plays Johnathan Kent).
Answer: No, there is no such character in the comics. He's a "meteor-freak" like all the other baddies on the show. The sound has something to do with him vibrating his vocal cords very fast to create a high-pitched squeal.