List of Famous people who are 55

Murilo Bustamante is a retired Brazilian mixed martial artist and former UFC Middleweight Champion. He is one of the founders of the Brazilian Top Team and is the current leader. In addition to competing for the UFC, he has also fought in PRIDE, making it to the Pride Shockwave 2005 Final, and also fought in Yarennoka!

Axel Braun, is an Italian-American adult film producer and director known for his productions of pornographic parodies.

Brenda Louise Romero, previously known as Brenda Brathwaite, is an American game designer and developer in the video game industry. She was born in Ogdensburg, New York and is a graduate of Clarkson University. Romero is best known for her work on the Wizardry series of role-playing video games and, more recently, the non-digital series The Mechanic is the Message. She has worked in game development since 1981 and has credits on 49 game titles.

Carolyn Ruth Bertozzi is an American chemist. Bertozzi is known for her work on bioorthogonal chemistry, a term she coined. At Stanford University, she holds the Anne T. and Robert M. Bass Professorship in the School of Humanities and Sciences. Bertozzi is also an Investigator at the Howard Hughes Medical Institute (HHMI) and is the former Director of the Molecular Foundry, a nanoscience research center at Lawrence Berkeley National Laboratory. She received the MacArthur "genius" award at age 33. In 2010, she was the first woman to receive the prestigious Lemelson-MIT Prize faculty award. She is a member of the National Academy of Sciences (2005), the Institute of Medicine (2011), and the National Academy of Inventors (2013). In 2014, it was announced that Bertozzi would lead ACS Central Science, the American Chemical Society's first peer-reviewed open access journal that offers all content free to the public. As an open lesbian in academia and science, Bertozzi has been a role model for students and colleagues.