Justice Martin Bureau ruled Monday the conductor as well as the owner of the runaway train that exploded and killed 47 people have been added as respondents.
Driver Thomas Harding, Montreal Maine and Atlantic Canada Co., and Canadian Pacific Railway are now the three official respondents in the class action.
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Wrecked oil tankers and debris from a runaway train in Lac-Mégantic, Que. are pictured July 8, 2013.
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Smoke rises from railway cars that were carrying crude oil after derailing in Lac Mégantic, Que., July 6, 2013.
THE CANADIAN PRESS/Paul Chiasson
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In this July 9, 2013 file photo, workers comb through debris after a train derailed causing explosions of railway cars carrying crude oil in Lac-Mégantic, Quebec. A government watchdog says federal regulators are failing to refer serious safety violations involving freight rail shipments of crude oil for criminal prosecution.
Paul Chiasson/The Canadian Press via AP, File
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The downtown core lays in ruins as firefighters continue to water the smoldering rubble, Sunday, July 7, 2013 in Lac-Mégantic, Que. after a train derailed igniting tanker cars carrying crude oil. Transport Canada has approved rules intended to reduce the risk of runaway trains in response to recommendations by the Transportation Safety Board following the deadly derailment in Lac-Mégantic, Que.
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Former Montreal Maine and Atlantic Railway Ltd. employees Tom Harding, right, Jean Demaitre, centre, and Richard Labrie are escorted by police to appear in court in Lac-Mégantic, Que., on Tuesday, May 13, 2014. The lawyer for the Harding, the train driver charged in the deadly Lac-Mégantic disaster, says Crown prosecutors are seeking to prevent his client from having a preliminary inquiry.
THE CANADIAN PRESS/Ryan Remiorz
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This Feb. 16, 2015 photo provided by the Transportation Safety Board of Canada shows a ruptured tank car on fire after a crude oil train derailment south of south of Timmins, Ontario. An investigation into the recent derailment in Ontario of a freight train carrying crude oil suggests new safety standards introduced after the Lac-Mégantic, Que., tragedy are inadequate, Canada's transport investigator said Monday.
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Quebec police investigating the Lac-Mégantic train disaster say they've visited the United States four times to seize documents and to interview witnesses - including railway chairman Ed Burkhardt.
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Firefighters from all over the province, and as far away as Maine, gather for a memorial mass in Lac-Mégantic on July 6, 2014
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About 25 other companies and individuals were once accused in the suit but have settled with victims and creditors.
Harding’s lawyer was not immediately available for comment, while the Montreal Maine and Atlantic Canada Co. is in bankruptcy protection and no longer has employees or assets.
Canadian Pacific (TSX:CP) denies involvement in the crash and is also facing a $409-million lawsuit brought forth by the Quebec government related to the derailment.