Donald Gennaro is the 'bloodsucking lawyer' from the original Jurassic Park movie. He is part of the team sent to investigate the park following the grisly death of a park employee during its construction stage. After originally appearing to be the party-pooper, questioning the park's safety and stressing that they are there to investigate, not for a "weekend excursion", Gennaro soon changes his tune when he realises the money-making potential of the park. Whilst out on the park tour, Gennaro is part of the crew whose jeeps break down next to the T-Rex paddock. Once the power goes off and it becomes apparent that the T-Rex is approaching, Gennaro promply exits the jeep, leaving the two children - Lex and Tim Hammond - to fend for themselves in what is a terrifying situation. Anyway, it turns out he had headed straight for a portaloo ("when you gotta go, you gotta go!") which the T-Rex knocks down whilst Gennaro is sat on the toilet. The T-Rex proceeds to rip the heartless lawyer in half.