Malcolm was born in 2006 to Nancy and Geoffrey Landgraab. His mother was very busy with her job, so she doesn't get to be with him very much anymore.
Malcolm is the son of Nancy Landgraab who, like most other Landgraabs, expects her son to inherit her family's dynasty. However, he looks unhappy about the thought and obviously isn't happy about the family rivalry. He is different from his parents, as he is a good, ambitious, bookworm. According to his mother's bio, she often neglects Malcolm because she is overly concerned with her looks, job, and social life. Although his parents are rivals with the Altos, he seems to have no current conflict with the family.
He had a big crush on a local girl named Darlene Bunch, who is not very similar to him. She came from a big family, while he has no siblings at all. Malcolm is also very good, while she is mean, at least she is to her older brother Arlo. As a teenager, he asked Darlene out on a date. It didn't go well, he learned Darlene is not very polite. He work average in school, and graduated with a C.
In the future, Malcolm's life changed a lot. He is married to a woman named Hannelore and they have a son named Adrien. Malcolm lives on the cliff-side of Moonlight Bay on a large lot. Malcolm moved from Sunset Valley for a better life, and to get away from the family rivalry. He wants to provide his son, Adrien, the best for him so that Adrien may be as successful as he is.
His relationship with Hannelore is very good, they get along very well. He wants his son to take over the businesses he has set up in town, so he can take over the job of mayor, like his maternal grandmother Queenie was.