Therese Voerman appears in Vampire: The Masquerade - Bloodlines, in which she is the Baron of Santa Monica and owned of the Asylum nightclub. She is apparently displeased by the main character's presence in her city.
Although Therese is a Malkavian, she dresses and acts like a Ventrue; as her "sister" Jeanette Voerman states, "She won't even touch blood unless it's in a wine glass." Therese is loyal to the Camarilla, as referenced by Jeanette when talking about the Gallery Noir.
Therese has a dispute with Bertram Tung, making him difficult to find as he is in a self-exile because he is 'hiding' from Therese. Therese says that she will call off her hunt if the main character dislodges a ghost from the Ocean House Hotel.
- The ghost...at midnight
A ghostly bauble must be retrieved from Ocean House Hotel to draw out a malevolent haunt.
In order for Therese to renounce her feud with Tung you must travel to the local diner and relay a message of peace to Jeanette.
- Therese Voerman is master to the insufferable ghoul Vandal (head of the S.M.M.C. blood bank).
- It is believed that of the two sisters, Therese was the original and primary personality, her alternate persona "Jeanette" having been created as an means to deal with the long-reaching consequences of the sexual abuse Therese's father inflicted on her when she was a child. An attempt is implied to have been made to cure her of her Dissociative Identity Disorder in the past, but Therese makes references to Embracing her alternate persona in order to include her in Kindred life as well. (Though Therese has a fervently puritanical attitude towards sex, she insists that her father did nothing wrong, while hard-partying Jeanette acknowledges the abuse and its depravity.)