This episode featured different music and opening credits than all subsequent episodes.
Jennie Garth (Kelly), Ian Ziering (Steve), Brian Austin Green (David) and Tori Spelling (Donna) are all main cast members of Beverly Hills 90210.
Alison: Natalie is gone. She and all of her things have disappeared.
Matt: Maybe she was kidnapped.
Alison: Come on, Matt, who would want Natalie?
Matt: Space aliens. You read about it all the time.
Donna: Don't you think if Jake really wanted to call you, he'd call you?
Kelly: Maybe something happened.
David: Yeah, like he permanently lost your number.
Sandy: (about Jake dating Kelly) What will it be for you two? A beer and a chocolate milk?
Billy: You okay?
Alison: Fine, for somebody who probably just lost her job.