Sidoo, 59, was a 2016 recipient of the Order of B.C.
Loughlin was out of town at the time due to filming but has since turned herself in to authorities.
The former "Full House" star was in Vancouver Tuesday filming a TV movie for the network when Federal Bureau of Investigation agents showed up at the L.A. home she owns with her husband, Mossimo clothing founder Mossimo Giannulli, to arrest the couple for their role in a sweeping college bribery scam. Giannulli posted bond and was released Tuesday.
The scandal also ensnared movers and shakers in the corporate world. Macy paid $250,000 to have her released.
Riddell didn't return several phone calls seeking comment.
Just under 50 people were charged in court on Tuesday.
Singer pleaded guilty and his lawyer, Donald Heller, said that his client intends to cooperate fully with prosecutors and is "remorseful and contrite, and wants to move on with his life".
Thirty-three parents, including actor Lori Loughlin, were charged, as well as 13 coaches and associates of Singer's business.
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The elaborate scheme involved bribing the administrators of college entrance tests to allow a child's wrong answers to be corrected and bribing university athletic coaches to attest a child was a gifted athlete even if he or she was anything but.
Some parents spent hundreds of thousands of United States dollars and some as much as US$6.5 million to guarantee their children's admission, officials said. Prosecutors in the US attorney's office in Boston say his company, Edge College & Career Network, amassed $25 million through the fraud.
At least nine athletic coaches and 33 parents were charged. Her husband has yet to be charged with anything, and it's unclear if he ever will be.
Actresses Felicity Huffman and Lori Loughlin are among some 50 people charged in the massive scam to cheat on admission to elite USA universities that involved bribes, fraudulent test scores and even fake photographs. Macy was not charged, but authorities did not say why.
Actress Lori Loughlin Loughlin will be booked at the Metropolitan Detention Centre in Los Angeles over the college admissions scandal.
Loughlin is now filming a TV movie in B.C. for Hallmark Channel, where she has been a mainstay since 2013.
Prosecutors said the scheme began in 2011 and also helped children get into the University of Texas, Georgetown University, Wake Forest University and the University of California, Los Angeles (UCLA).
John Vandemoor, a former Stanford University sailing coach, is also scheduled to plead guilty to racketeering conspiracy charges.