In the 2000 film "Meet the Parents" what was the real first name of Ben Stiller's character?

"Meet the Parents" is a 2000 American romantic comedy written by Jim Herzfeld and John Hamburg and directed by Jay Roach. Starring Robert De Niro and Ben Stiller, the film chronicles a series of unfortunate events that befall a good-hearted but hapless nurse while visiting his girlfriend's parents. Teri Polo, Blythe Danner, and Owen Wilson also star.

Gaylord "Greg" Focker (Ben Stiller) is a nurse living in Chicago. He intends to propose to his girlfriend Pam Byrnes (Teri Polo), but his plan is disrupted when he and Pam are invited to the wedding of Pam's sister, Debbie (Nicole DeHuff), at Pam's parents' house in Oyster Bay. Greg decides to propose to Pam in front of her family but this plan is put on hold when the airline loses his luggage which contains the engagement ring.

Released in the United States and Canada on October 6, 2000 and distributed by Universal Studios, the film earned back its initial budget of $55 million in only eleven days. It went on to become one of the highest-grossing films of 2000, earning over $160 million in North America and over $330 million worldwide.