THEN: In perhaps the biggest role of his career, Sam Neill played leading paleontologist Dr. Alan Grant, who gets invited to the Jurassic park dinosaur-filled island.
NOW: Neill reprised his role in "Jurassic Park III" and has appeared in TV series including "The Tudors." He currently plays Inspector Chester Campbell in the British gangster drama "Peaky Blinders," which is preparing for its third season.
"Peaky Blinders" airs on BBC Two and can be seen on Netflix.
THEN: Laura Dern played paleobotanist Dr. Ellie Satner, who accompanies Dr. Grant on his trip to Jurassic Park.
NOW: Dern's great HBO series "Enlightened" was cancelled too soon. Last year, she was nominated for an Oscar for "Wild." She most recently starred in the drama "Bravetown."
NOW: Goldblum appeared in box-office hit "Independence Day" and has appeared in many TV series since including "Portlandia." After appearing in last year's Oscar-nominated "The Grand Budapest Hotel," he'll appear next year's sequel to "Independence Day."
NOW: Well ... what hasn't Samuel L. Jackson been in? He seems to pop up everywhere. This year, you could see him as the villain in "Kingsman: The Secret Service" and reprise his role as Nick Fury in a cameo in "Avengers: Age of Ultron."
Jackson has also played Nick Fury in several other Marvel movies and the TV series "Agents of S.H.I.E.L.D." The character is likely to return again.
NOW: Hello, Newman. "Seinfeld" might be over, but Knight hasn't strayed too far from the laugh track: he is currently a series regular on TV Land's "The Exes."
NOW: Attenborough passed away in 2014. His last credited role was as narrator of the 2002 comedy "Puckoon."
Attenborough was also a director. The last film of his was "Closing the Ring" in 2007.
NOW: Mazzello has popped up in many different projects since "Jurassic Park." The most memorable of them is "The Social Network" from 2010, in which he played Facebook co-founder Dustin Moskovitz.
NOW: Ferrero has appeared in movies including as "Heat" and "Get Shorty," but back in 2011, he brought Donald Gennaro back for a College Humor video.
The sketch pokes fun at the fact that his character is most likely to get eaten by a dinosaur, given that he is nowhere near as important to the story as the scientists are.