Matthew has deep auburn hair like his mother’s, but seems to share some of Robert's looks. At three he isn't big for his age. When Matthew is four his curly hair has grown long enough to reach his shoulders, and Anita notes that the color is only a little browner than in Nathaniel's hair. Matthews eyes are a nice, solid brown.
Matthew hasn't been born yet in this novel, but is at the center of a lot of drama nevertheless. At the beginning of the novel Anita is surprised to learn about the pregnancy, as Robert has been a vampire for over a century and fathering children has been thought impossible at that stage, but a lot of time in a hot tub has accidentally overcome the odds. Matthew's parents are worried about the upcoming amnio that will determine whether he suffers from Vlad syndrome, which can cause severe birth defects or even death. Later in the novel his father is murdered, and upon learning the news her mother goes into premature labor with three months of the pregnancy left. Doctors manage to stop the labor, and Jean-Claude promises Monica that she and her son will "want for nothing". The amnio comes back clean, and Matthew is due to be born in August.
We don't hear about Matthew or his parents in the 12 novels and novellas following the news about the pregnancy, but here we finally learn that Matthew was indeed born and named, and has apparently been a small but persistent part of Anita's life ever since. When Monica is away on business or otherwise needs baby-sitters Matthew often stays with Jean-Claude's people, including Anita, Nathaniel and Micah, and becomes very attached to them. Both Monica and Matthew call them aunt and uncles despite Anita's initial reluctance.
Sometime within the two weeks preceding the novel Matthew has decided that cheek kisses are for babies and insists on getting kissed on lips now, which makes Anita wonder if Monica is being overly friendly with her presumed new boyfriend in front of the kid. Matthew further disturbs Anita by insisting it's okay if he gets lipstick traces as long as it's Anita's lipstick, since "All the big boys kiss you, 'Nita." It makes Anita re-asses her earlier assumption about who exactly has been kissing a lot in front of Matthew.
In the beginning of the novel Matthew takes part in a dance recital of one of St. Louis dance schools. Nathaniel and Stephen have helped Matthew practice his moves, and he takes the task very seriously. During the recital Anita, Jean-Claude, and J. J. all note that for a three-year-old Matthew shows great talent. After the recital Anita notes Matthew trying to imitate some of the moves the men did in their performances.
At the end of the novel Matthew is visiting at Anita's house one afternoon, with plans to stay overnight and getting dropped off at preschool the next day, with Monica back in town in time to pick him up after. When they discuss what that evening's bedtime story should be Matthew again insists he's a big boy now, choosing Peter Pan over Goodnight Moon.
Matthew is mentioned briefly as a toddler Anita's group babysits sometimes. It keeps on disturbing Anita that Matthew insists on getting a kiss from her on the lips every time she sees him, "because all the big boys kiss 'Nita."
Matthew is spending a whole week at Anita's place, his longest stay this far. He accompanies Anita, Nathaniel and Micah to Zerbrowski's annual barbecue because Monica is on a work trip and it's a chance for Matthew to spend time with other kids outside of preschool and dance recital, and maybe even make new friends. He becomes a great success among the girls who dance, even those who are older than his four years, although it causes some strain between him and some of the boys.
One of the other boys attacks Matthew during the event, jealous of the attention he's getting from the girls, but the situation is resolved with some cold water and adult intervention. Later that evening the girls and Nathaniel set up an impromptu dance practice, with initially only Nathaniel and Matthew helping the girls show off their skills. The attacker and many of the other boys are drawn into the practice and get their own share of attention, and the hard feelings towards Matthew get pushed aside.
We learn that Jean-Claude reads Matthew bedtime stories when he stays with them at the Circus.
- Matthew's birthday is between May and July; his age is given as three in both Bullet (July) and in Kiss the Dead (the following May), placing his birthday sometime between May and July.
- Matthew was due in August, although it seems that he was born early since his birthday is in July or earlier.
- Kiss the Dead, epilogue chapter.