Trivia: Lisa Kudrow auditioned for the role of Roz. She had actually appeared before in an episode of Cheers, when she played a character called Emily who was giving Woody acting lessons. Peri Gilpin, who got the part of Roz, also played a reporter in Cheers season 11 - "Woody gets an election."
Trivia: Walter Jones (Zack the Black Ranger) is missing his left middle finger. If you look closely you'll see it missing at various times throughout the show. Particularly when he morphs (he's the only one that only has three fingers on top of the morpher).