Dawson Casting: Suzanne Snyder (Deb) was 22 while filming her role as a high school student.
Enforced Method Acting: In an interview at Comic Con, Kelly LeBrock said when she did the kissing scene with fourteen-year-old Ilan Mitchell-Smith, he got carried away and stuck his tongue down her throat. Afterwards she told him: "If you ever do that again, I'm going to kick your ass!"
The Other Marty: Kelly Emberg was originally cast as Lisa, but was replaced after a couple of days of filming.
Throw It In!: Several of Chet's most famous taunts were suggested by Bill Paxton, based on things people had said to him.
Urban Legend of Zelda: According to a recent interview on The Howard Stern Show, Robert Downey Jr. cleared up the rumors that he defecated in Kelly LeBrock's trailer. He stated that he and his co-star, Robert Rusler (Max) joked about defecating in people's trailers throughout the shoot. They eventually did it in one female cast member's trailer, but it was not LeBrock's. John Hughes questioned everyone in the cast as to who did it, and when he got to Downey, he replied, "No, but I sure wish it was me who did it." He also stated there was never any tension between him and Hughes, and he highly respected his friendship.
Dawson Casting: When the series began, John Mallory Asher (Gary) was 22 and Michael Manasseri (Wyatt) was 19 though their characters were only supposed to be 15.
Keep Circulating the Tapes: It was years before and years since a DVD release of Seasons 1 and 2 came out. The series also hasn't aired on American television in a decade- it was last seen on what was then Fox Family, to give you an indication of how long it's been. The series is, however, available on Hulu. Downside is that eleven episodes are missing. The entire series was released on DVD in Australia in 2017 but there is no sign of any other DVD releases in the US or elsewhere.
The Other Darrin: Wyatt's Mom and Dad. His mother Marcia was played by Melendy Britt in Seasons One and Two and, after being entirely absent in Season Three, by Melanie Chartoff in Seasons Four and Five. His father Wayne was played by Richard Fancy in Season One and by Andrew Prine for the rest of the series.