

Donald Gennaro was a lawyer sent by Cowan, Swain & Ross to inspect Jurassic Park. He was also the general counsel for InGen. He appears in both the book and film. Although he survives in the novel, in the film he was killed by the newly-escaped Tyrannosaurus rex. Both depictions of the character are extremely different in most regards.

Film canon Donald Gennaro was a lawyer who represented the investors of John Hammond's Jurassic Park. He is described in the script as: DONALD GENNARO, forty, in a city man's idea of hiking clothes and a hundred dollar haircut... Gennaro accompanied the endorsement team on a weekend trip to Gennaro accompanied the endorsement team on a weekend trip to Jurassic Park to inspect the park's viability and security. Having his own reservations, informed Hammond "in 48 hours he'd shut him down"'. In turn Hammond responded "that in 48 hours he'd be accepting his apologies". After witnessing a real Brachiosaurus and watching a tour show Gennaro changed his views and believed Jurassic Park could make a fortune charging upwards of $2,000 to $10,000 a day. When Hammond states his intention for the park to be open to everyone and not just the super-rich, Gennaro off-handedly suggests having a "coupon day or something". On the program tour Gennaro rides (like Ed Regis in the novel) in the same car as Hammond's grandkids Lex and Tim Murphy; he seems pretty okay having them there on the tour with him, unlike in the book where he is furious about the idea of having children there. They have two no-shows, one where they're supposed to see a Dilophosaurus but don't, and when they're supposed to see Rexy the T. rex eating a goat, the Tyrannosaurus doesn't appear at all. They also meet a sick female Triceratops. With a storm coming the group headed back in the cars to the Visitor Center but the power was shut off by Dennis Nedry and the cars stopped in front of the Tyrannosaur Paddock where Gennaro, Lex, and Tim watched in horror as the T. rex ate the goat it was supposed to eat earlier. Gennaro runs out of the car and into a bathroom nearby and sits frightfully on a toilet, leaving Lex and Tim to fend for themselves from the T. rex. Ian Malcolm tried to distract the T. rex but only causes it to charge towards the bathroom. Gennaro starts reciting the "Hail Mary" prayer but quickly gives up and slams the stall door shut. This effort proves futile as the Tyrannosaurus smashes its head through the door and causes the entire structure to collapse around Gennaro. He attempts to stay still, but the rain causes him to rub his eyes, blowing his cover. The Tyrannosaurus then bites down on his upper-body, lifts him off the toilet and violently shakes him around, breaking his bones, tears him apart and eats him. When Muldoon and Ellie arrive at the Tyrannosaurus paddock in an attempt to look for survivors, they find his remains several feet apart. In a deleted scene of The Lost World: Jurassic Park, 4 years after his death, he is mentioned a few times. Peter Ludlow says that Gennaro's family sued InGen for 36.5 million dollars after his death.

Comics Jurassic Park: Genesis In Jurassic Park: Genesis Donald Gennaro is a lawyer who is invited, twice, to visit Jurassic Park. He constantly seems unimpressed with what he is seeing during the production of the Park. Jurassic Park Movie Adaptation I While accompanying Dr. Alan Grant, Ellie Sattler and Ian Malcolm on their tour, Donald notes on numerous occasions how the impressions of those seeing the Park (both the doctors and himself) affect the fate of Jurassic Park. Ultimately, when the fences are de-powered and the Tyrannosaurus rex escapes, Gennaro abandons John Hammond’s grandchildren, Tim and Alexis, and cowers in a nearby toilet facility. Eventually, the T. rex proceeds to eat him after it shatters the facility; ironically, Gennaro had watched this dinosaur being born on his prior visit, and was unimpressed, evoking Hammond to tell him that “someday, this little fellow might surprise you!”

Jurassic Park (SNES) Gennaro himself doesn't physically appear, but you need his ID card, which is found in the basement of the Nublar Utility Shed. LEGO Jurassic World When the Tyrannosaurus gets free, Gennaro hides in the restroom (as in the film) and attempts to construct a wall to protect himself. Tyrannosaurus knocks the bathroom down, and although Gennaro attempts to defend himself with a toilet brush, he is eaten. The Tyrannosaurus briefly opens her mouth, revealing Gennaro, still alive, and he begins cleaning her teeth using the brush. At the end of the portion based on the first film, she develops stomach problems and vomits him up still alive in a comical fashion, whereupon he offers to continue cleaning her teeth for her. Later on the T. Rex spits him out and he joins Robert Muldoon and Dennis Nedry in fleeing from the dinosaurs as Grant, Ellie, Malcolm, Lex, Tim, and Hammond leave the island via helicopter. Later in Jurassic World, it is revealed that he along with Muldoon and Nedry have grown grey beards and taken refuge in an abandoned Jurassic Park Responder in the Visitor Center's garage, appearing briefly after brothers When thegets free, Gennaro hides in the restroom (as in the film) and attempts to construct a wall to protect himself.knocks the bathroom down, and although Gennaro attempts to defend himself with a toilet brush, he is eaten. Thebriefly opens her mouth, revealing Gennaro, still alive, and he begins cleaning her teeth using the brush. At the end of the portion based on the first film, she develops stomach problems and vomits him up still alive in a comical fashion, whereupon he offers to continue cleaning her teeth for her. Later on the T. Rex spits him out and he joins Robert Muldoon and Dennis Nedry in fleeing from the dinosaurs as Grant, Ellie, Malcolm, Lex, Tim, and Hammond leave the island via helicopter. Later in Jurassic World, it is revealed that he along with Muldoon and Nedry have grown grey beards and taken refuge in an abandoned Jurassic Park Responder in the Visitor Center's garage, appearing briefly after brothers Gray Mitchell and Zach Mitchell get one of the old vehicles running. Martin Ferrero does not reprise his role; some of his lines are re-recorded by another actor.