<Li> Sara Canning as Jacquelyn, Mr. Poe's standoffish assistant and a member of the Baudelaire family's secret society . She possesses a spyglass . </Li> <Li> Patrick Breen as Larry Your - Waiter, a member of the Baudelaire family's secret society who is seen working as a waiter at various establishments the Baudelaires visit, including the Anxious Clown and Café Salmonella . </Li> <Li> Sara Rue as Olivia Caliban, a librarian at Prufrock Preparatory School who later enlists as a member of the Baudelaire family's secret society when she becomes invested in the Baudelaires' plight . </Li> <Li> Nathan Fillion as Jacques Snicket, the dashing adventurer brother of Lemony Snicket who enlists Olivia Caliban to help the Baudelaires . </Li>

Who plays the librarian on lemony snicket's a series of unfortunate events