Who He's Playing: Mark-Paul Gosselaar
Where You Might Have Seen Him: "Degrassi: The Next Generation," "Wingin' It"
Fun Fact: Canadian!
Who She's Playing: Tiffani-Amber Thiessen
Where You Might Have Seen Her: She's pretty much a newcomer -- though she does have a part in the upcoming short film, "The Gnome of Za."
Fun Fact: Trained as a dancer before concentrating on acting, so she has that going for her too.
Who He's Playing: Mario Lopez
Where You Might Have Seen Him: "Paranormal Activity: The Marked Ones," "NCIS: Los Angeles"
Fun Fact: Once played a character named DJ Bootytime.
Who She's Playing: Elizabeth Berkley
Where You Might Have Seen Her: "Supernatural," "Painkiller Jane"
Fun Fact: Also a model. And, according to Twitter, a dreamer.
Who He's Playing: Dustin Diamond
Where You Might Have Seen Him: "Shameless," "American Viral"
Fun Fact: "Both my cats are named Jeffery thanks to me," notes a Twitter page purporting to belong to the actor.
Taylor Russell McKenzie
Who She's Playing: Lark Voorhies
Where You Might Have Seen Her: "Emily Owens M.D." (she played Mean Girl #1), "If I Had Wings"
Fun Fact: Also performs under the name Taylor Russell, because she's versatile that way.