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Madeline Kostopulos

Madeline Kostopulos is a San Diego construction manager who joined The Traitors: New Blood and became its first contestant banished at the Round Table.

Biography

Madeline Kostopulos is a construction manager from San Diego who competed on The Traitors: New Blood. She entered the castle hoping to play as a Faithful, but became the first contestant banished at the season's Round Table.

Kostopulos brought a construction-management background to New Blood and played as a Faithful.

Known for

The Traitors: New Blood

Kostopulos brought a construction-management background to New Blood and played as a Faithful.[4][1][5]

Career highlights

  1. Career 1

    Work before television

    NBC named construction management as her occupation. In her pre-season TV Insider interview, she described herself as a team player and saw her social abilities as an advantage.[1][4]

  2. Career 2

    An open approach to the game

    Kostopulos told Parade that she wanted to be honest and enjoy getting to know people. Her connection with Victor became part of the early episodes, with both describing an immediate rapport.[5]

  3. Career 3

    The first Round Table

    Suspicion focused on a remark about Kim Daily's elimination that another contestant misheard. Kostopulos was voted out as a result, then revealed that she had been a Faithful.[5]

  4. Career 4

    Explaining her decisions

    She later discussed taking a protective Shield during the first mission. Kostopulos said she had waited until late in the challenge and had not realised the decision was causing concern among other players.[5]

  5. Career 5

    After leaving the castle

    In her September 2026 exit interview, she said seeing the episode helped her feel understood. She also stressed that she remained friends with the cast and did not want viewers directing hostility at anyone.[5]