OnneDi Biography: YouTube, Age, True Crime Content, Brother, Net Worth, Parents, Movies

Dionne Slagter is a talented Dutch YouTuber, content creator, podcast maker, streamer, and actress. Known under her online alias OnneDi, she has built a large following with true crime videos, misdaad en mysterie content, and other engaging topics.

She has also worked in acting and appeared in Dutch television and film projects, establishing herself as a versatile figure in digital media and entertainment.

Quick Facts

• Full Name: Lydia Dionne Slagter
• Stage Name: OnneDi
• Born: June 4, 1990
• Age: 35 years old
• Birthplace: Woerden, Netherlands
• Nationality: Dutch
• Ethnicity: Dutch
• Occupation: YouTuber, Content Creator, Podcast Maker, Streamer, and Actress
• Height: Unknown
• Religion: Christianity
• Parents: Mr. and Mrs. Slagter
• Siblings: Henrik (older brother)
• Spouse: None
• Children: None
• Relationship: Unknown
• Net Worth: $3 million USD

Early Life and Education

Dionne Slagter is a talented YouTuber, content creator, podcast maker, streamer, and actress. She was born on June 4, 1990, in Woerden, Netherlands.

Raised by her parents, Mr. and Mrs. Slagter, she grew up alongside her older brother Henrik. Her parents divorced when she was nine years old, which shaped parts of her early years.

She attended Kalsbeek College for secondary school and later studied at the Herman Brood Academie, where she developed skills in performing arts. Details about her further education remain limited, as she moved into creative work and online content early.

Her ethnicity is Dutch. Her religion is Christianity.

Career

Dionne Slagter is a talented YouTuber, content creator, podcast maker, streamer, and actress. She started her YouTube channel OnneDi in 2011, initially posting vlogs, music, makeup tutorials, challenges, and eclectic content that appealed to a young audience.

Over time, she shifted focus to true crime and mystery videos, which became her main niche and attracted millions of views. Her channel features detailed discussions on misdaad cases, cold cases, and controversial stories, often in a documentary style.

She has expanded into podcasting and streaming, hosting shows on true crime topics and appearing on platforms like HBO Max with True Crimes of The ’90s met Dionne Slagter.

As an actress, she has roles in films and series such as Dare (2017), Kappen! (2016), 100% Coco (2017), and others.

She participated as a contestant on De Verraders (the Dutch Traitors) Season 2, where she reached the end as a Faithful and winner. Her work includes collaborations, brand partnerships, and live streams, with a strong presence on Instagram and YouTube that keeps her audience engaged through consistent and authentic content.

Social Media

• Instagram Handle: @onnedi
• YouTube handle: OnneDi

Personal Life

Dionne Slagter, 35, is a talented YouTuber, content creator, podcast maker, streamer, and actress. She grew up in Woerden with her parents, Mr. and Mrs. Slagter, and her older brother Henrik after her parents’ divorce when she was nine.

She keeps her romantic life private, with past relationships mentioned in media but no current public spouse or children. She focuses on her creative projects, true crime passion, and personal interests while sharing select aspects of her daily life online.

Net Worth

Dionne Slagter is a talented YouTuber, content creator, podcast maker, streamer, and actress. Net worth is estimated at $3 million USD.

Her income comes mainly from YouTube ad revenue, sponsorships, brand deals, podcasting, streaming, and appearances in television and film.

Filmography

Selected Filmography

• Dare (2017)
• Kappen! (2016)
• 100% Coco (2017)
• 100% Coco New York
• Enough!
• De Familie Slim
• Roadtrippers