Britte McBride on Friday became the Massachusetts Cannabis Control Commission's third member, after she was announced as Attorney General Maura Healey's pick for the new agency overseeing the marijuana industry that's expected to take root in the Bay State.

McBride, a 39-year-old resident of Lynnfield, voted against marijuana legalization when the issue was on the November 2016 ballot, according to Healey's office.

That makes her the third member of the five-member commission who opposed the ballot question, joining three others. Other members who voted against the ballot question are retired executive Steven Hoffman and former state Sen. Jen Flanagan.

The fourth, whose appointment was announced on Friday, is Kay Doyle, who also voted against the ballot question.

McBride previously worked as legal counsel for the Massachusetts Department of Public Safety, as an aide to former Attorney General Martha Coakley, and as deputy legal counsel to the Massachusetts State Senate.

State Treasurer Deb Goldberg announced Hoffman as the chair of the Cannabis Control Commission on Thursday, while Gov. Baker's office released news of Flanagan's appointment last week.

The other two picks for the Cannabis Control Commission, announced jointly by Baker, Healey and Goldberg are Kay Doyle, deputy general counsel at the Massachusetts Department of Public Healthy, and Shaleen Title, co-founder of THC Staffing Group, a cannabis recruiting firm.

Doyle, 47, voted against the ballot question, while Title, 34, voted for the question. Title helped draft the ballot initiative.

The commission is tasked with overseeing and regulating the new retail pot industry set to spring up in Massachusetts after voters legalized the substance. Medical marijuana also falls under the commission's aegis.

"We are pleased to partner with the Treasurer and Attorney General on these important appointments as our administration works with the Cannabis Control Commission to implement the will of the people," Baker said in a statement. "Executing the duties of the commission responsibly is vital to safely laying the groundwork for this new industry in the Commonwealth."

This post was updated at 1:56 p.m. with additional information on the appointees.