Continuity mistake: At the end of the episode, Perry and Clark arrive at the intersection to wait for the bus. They walk out into the intersecting road, and the bus arrives, positioned in the middle of the road, since they are standing in the right lane. Perry and Clark say their goodbyes, and a new shot of the bus from behind, shows the bus is in the right lane only as it starts up from the stop.
Continuity mistake: Just before Clark gets the call from Lana we see inside the trunk of Pete's car. At this point there is a coiled rope in the trunk turned parallel to the rear of the car. When Pete gets the rope for Clark a little later the rope is turned perpendicular to the rear of the car.
Continuity mistake: As Perry and Clark talk for the last time in this episode the sunlight in the scene changes between shots. As they step out of the truck the sun is behind them as they walk towards the road where the bus is going to stop. When Perry turns to face Clark the sunlight, which should now be hitting Perry right in the face, is instead casting a bright orange light on the back of Perry's head.
Continuity mistake: As the telephone pole crashes falls on Perry's car the sky is bright blue with very widely spread clouds. Clark takes less than two seconds to get Perry out of the car and as he runs away from the car, with Perry in his arms, the sky now has many more clouds than before.
Continuity mistake: In the previous episode, "Slumber," Clark wrecks the farm truck by falling asleep while driving. The car has massive damage that, at a minimum, would be extremely expensive and time-consuming to repair. Realistically, though, it is completely totaled. In the episode "Perry," the truck is again in brand new condition, like it was untouched.
Continuity mistake: When Perry arrives at the Kent's, and they start talking, Clark has his hands in his pockets. After being asked it he's a report, Perry starts to walk around and the shot changes and Clark no longer has his hands in his pockets and is then seen putting them in them.
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.