Trivia

She took a hiatus from acting for almost twenty years (1998-2016) until she was lured back by Kim Rossi Stuart for a substantial supporting role in Tommaso (2016). (Lassander and Rossi Stuart's father Giacomo Rossi Stuart appeared together in a thriller called Il vizio ha le calze nere (1975) and became close friends, so Kim Rossi Stuart knew Lassander from childhood on.).

Stated that Le duo de la mort (1969) was her personal favorite among the films she had done.

She claimed that didn't get along with Laura Betti on the set of Une hache pour la lune de miel (1970). Apparently, Betti was very derogatory to her.

When she arrived in Italy at age 25 in 1968, she didn't speak any Italian at all, only German and a little English. By 1972, she was fluent in four languages: German, English, French, and Italian. Until then, she was either dubbed or recorded her lines in English.

Very little is known about her private life. It is said that she'd been married several times and has a son. As of 2020, she still lives in Rome.