Rachel Leigh Cook
Ali Larter
Scott Foley
Busy Phillips
Jonathan Lipnicki
Dawson, Joey, Pacey, Jen... and a naked Rachel Leigh Cook.
Rogen appeared in Dawson’s sixth season as Bob, a stoner who hooks up with Joey’s college roommate Audrey. BEST LINE: "We porked."
Cook played Devon, who first meets Dawson while she's posing naked for Joey's art class. He later casts her in his autobiographical movie as Joey.
Jane starred as Pacey's overbearing religious mom in season four.
Ali played Kristy Livingstone, who briefly dated Pacey.
Before he was on "Supernatural," Ackles stopped by season six of "Dawson's" to play C.J., whom Jen meets in college and has a tumultuous relationship with after he sleeps with -- yep -- Joey's roommate Audrey.
Scott, a nice-guy jock, wooed Jen in season one.
Murray rocked the WB long before his "One Tree Hill" days, playing Charlie Todd, Jen's cheating musician boyfriend, in season five.
Fresh off her "Freaks and Geeks" run, Busy played Audrey, Joey's college roommate who dates Pacey for awhile.
As Buzz Thompson, 9-year-old Lipnicki reprised his "cute Jerry Maguire kid" act, playing a troubled boy whom Pacey mentors.