Elizabeth Holmes, the founder of Theranos, enters prison 1:50

(CNN) -- As Elizabeth Holmes entered prison on Tuesday, Amanda Seyfried shared her thoughts on the sentence of the founder of Theranos.

The actress, who played Holmes on the Emmy-winning series "The Dropout," visited "Good Morning America" on Tuesday to talk about her new show "The Crowded Room," and said it was "weird" that while she was there Holmes began his sentence at the same time.

  • How Elizabeth Holmes went from being "the next Steve Jobs" to being convicted of fraud and conspiracy

Amanda Seyfried as Elizabeth Holmes in "The Dropout" (Credit: Beth Dubber/Hulu)

"I feel sorry for those kids," Seyfried said, referring to Holmes' two young children. "There are two children hanging by a thread here."

The "Mamma Mia" star, who is also a mother of two, added that it also affected her "as a parent, as a mother."

"Life is not fair," Seyfried added, "but in many ways, it is fair. For her, in particular."

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Holmes was sentenced in November 2022 to 11 years and three months in prison for defrauding investors while running her failed blood-testing startup Theranos.

Holmes and Ramesh "Sunny" Balwani — her ex-boyfriend and former Theranos COO, also convicted of fraud — must pay about $452 million to the victims of their crimes.

  • Elizabeth Holmes Sentenced to More Than 11 Years in Prison for Fraud

Amanda Seyfried, left, and Elizabeth Holmes. (Credit: Getty Images/AP)

Holmes founded Theranos in 2003, a startup that claimed to have invented a technology capable of accurately detecting a range of health conditions with just a few drops of blood. The company raised $945 million from an impressive list of investors and was valued at about $9 billion at its peak, making Holmes a paper billionaire. The executive appeared on magazine covers and participated in public speeches wearing a black turtleneck jumper that invited comparisons to the late Apple CEO Steve Jobs.

His promises about Theranos' capabilities grew increasingly tenuous as suspicions arose about the efficacy of the science behind the company's core product and machinery, culminating in a precipitous downfall that was explored in numerous podcasts, a documentary, and the Hulu dramatization starring Amanda Seyfried.

Holmes, once a tech icon who exemplified Silicon Valley's boundless ambitions and potential, became the only tech executive to be tried and convicted on fraud charges.

In March, Holmes tried to postpone the start of his sentence on the grounds that he had children. The appeal was denied.

-- CNN's Jordan Valinsky, Catherine Thorbecke and Rachel Metz contributed to this report.

Elizabeth HolmesTheranos