Cindy "Mac" Mackenzie

Cindy Mackenzie
Screenshot of "Mac" Mackenzie from Veronica Mars
First appearance	"Like a Virgin"
Last appearance	"The Bitch Is Back" (TV series) Veronica Mars (film)
Created by	Rob Thomas
Portrayed by	Tina Majorino
Information
Nickname(s)	Mac
Gender	Female
Occupation	Student
Family	Natalie Mackenzie (legal mother) Sam Mackenzie (legal father) Ryan Mackenzie (legal brother) Mrs. Sinclair (biological mother) Mr. Sinclair (biological father) Lauren Sinclair (biological sister)
Significant other(s)	Max Bronson Pope Cassidy Casablancas (deceased)

"The Bitch Is Back" (TV series)

Cindy "Mac" Mackenzie is a fictional character on UPN/The CW television series Veronica Mars played by Tina Majorino. She was a recurring character during the first two seasons, and turned into a regular character for the third season.

Mac uses her computer hacking and cracking skills to help Veronica with her cases; the two joke that she is a kind of Q to Veronica's James Bond. Coincidentally or not, Mac (a common nickname for "Mackenzie") has shown preference for Apple Macintosh computers, which share her nickname.

In the episode where Mac is introduced, "Like a Virgin", she helps Veronica find out who has stolen her password and has created a false score under her name on a purity test that had become a brief fad at Neptune High. However, Mac is the person who created the test in the first place, making it possible for the "sex crazed 09ers" to access other people's purity tests. Veronica has no resentment towards Mac for this, only caring about those that took tests for others.

Mac has always felt like an outsider in her family, having completely different tastes and views. While digging for dirt on Mac's parents, Veronica discovers that Mac was switched at birth with Madison Sinclair. Since the mistake was discovered four years after the births, the parents decided to keep the children. Each family received a cash arrangement from the hospital. While Madison's family invested and flourished, Mac's started a business and went bankrupt. Years later, Mac's birth mother wants to get to know her, and she partially indulges her before watching her drive off into the distance when her family decides to go camping with her. ("Silence of the Lamb")