‘The Love Hypothesis’ Cast Guide: Who’s Who in the New Prime Video Romance?

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The Love Hypothesis

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What is love without a little chemistry? Well, The Love Hypothesis might take this a little literally.

Warning! Light spoilers below for The Love Hypothesis, now streaming on Prime Video.

The new Prime Video film adaptation of Ali Hazelwood’s 2021 bestseller brings the beloved romance to the small screen, which sees Olive (Lili Reinhart), a Ph.D candidate, and Dr. Adam Carlsen (Tom Bateman), a professor, try out an unorthodox experiment outside of the lab: fake dating each other. Both Olive and Adam have their own reasons for engaging in this ruse, but the results might be a tad more complicated than they thought they would be.

DECIDER contributor Maddy Casale recommended people STREAM IT in our The Love Hypothesis review, writing, “The Love Hypothesis might not be a romance for the ages, but it is a charmingly cheesy tale complete with classic tropes like found family and fake dating, resulting in a decently entertaining and pleasant final product.”

Wondering who’s who in The Love Hypothesis? Check out DECIDER’s The Love Hypothesis cast guide below.

  1. Lili Reinhart as Olive Smith

    Lili Reinhart in 'The Love Hypothesis'
    Photo: Prime Video

    Lili Reinhart stars as Olive Smith, a Ph.D candidate at Stanford University. After discovering that her best friend Anh has feelings for her crush, Jeremy—and that the feelings are mutual—she plants one on the first man she sees in front of Anh to convince her that she’s moved on and in a relationship. However, the man she kisses is none other than Dr. Adam Carlsen. Not only does Reinhart star in the film, but she is also an executive producer.

    Reinhart might be best known for her role as Betty Cooper in Riverdale. She also starred alongside Cooper Raiff in the series Hal & Harper. Want to learn more? Follow Reinhart on Instagram at @lilireinhart.

  2. Tom Bateman as Dr. Adam Carlsen

    Tom Bateman in 'The Love Hypothesis'
    Photo: Prime Video

    Tom Bateman plays Dr. Adam Carlson, a professor at Stanford University referred to as “Dr. Evil” by his students for his tough and rather cold demeanor. He decides to engage in a fake-dating ruse with Olive in order to help convince his colleagues that he has a reason to stay at Stanford, as opposed to taking a job offer at Harvard.

    Bateman—who might resemble fellow actor Tom Ellis to some— has earned film credits in projects like Much Ado About Nothing, Snatched, Death on the Nile, Thirteen Lives, and Hedda.

  3. Rachel Marsh as Anh Pham

    Rachel Marsh in 'The Love Hypothesis'
    Photo: Prime Video

    Anh (played by Rachel Marsh) is Olive’s confident and compassionate best friend at Stanford, who becomes a tremendous support system for her. However, when Anh and Jeremy confess their feelings for each other, she holds back out of respect for Olive.

    Fans of Adults will recognize Marsh as Carly. Other TV credits of hers include Unstable, The Morning Show, and Fallout. Want to learn more? Follow Marsh on Instagram at @rachel_marsh.

  4. Nicholas Duvernay as Jeremy Langley

    Nicholas Duvernay in 'The Love Hypothesis'
    Photo: Prime Video

    Nicholas Duvernay plays Jeremy Langley, another Ph.D candidate who immediately catches Olive’s eye. However, he is interested in her best friend, Anh.

    Duvernay recently starred in Hulu‘s Not Suitable for Work, which was sadly canceled after its debut season. He also recently appeared in Bel-Air and Reminders of Him. Want to learn more? Follow Duvernay at @nicholasduvernay.

  5. Jaboukie Young-White as Malcolm Browne

    Jaboukie Young-White in 'The Love Hypothesis'
    Photo: Prime Video

    Malcolm (played by Jaboukie Young-White) is Olive’s friend and roommate, who as a student of Dr. Adam Carlsen, is not a fan of him.

    Young-White is a comedian and actor, who outside of The Love Hypothesis, most recently appeared the movie Trash Mountain, which is set to hit theaters in October. He has also earned credits on TV shows such as BoJack Horseman, Fairfax, Only Murders in the Building, and Abbott Elementary.

    Want to learn more? Follow Young-White at @jaboukie.

  6. Arty Froushan as Dr. Thomas Benton

    Arty Froushan in 'The Love Hypothesis'
    Photo: Prime Video

    Dr. Thomas Benton (Arty Froushan) is a Harvard professor, whose lab Olive applies to work in who also went to grad school with Dr. Adam Carlsen.

    Recent credits of Froushan include Downton Abbey: The Grand Finale and Daredevil: Born Again. Want to learn more? Follow Froushan on Instagram at @artyfroushan.