Julius Brian Siswojo, is a versatile actor and a member of the Hong Kong Hip Hop group 24herbs. He was born on July 31, 1974 in Indonesia and moved to Hong Kong at the age of 11 to study at an English international school. He later went to Tokyo to study Japanese and is now fluent in English, Cantonese, Mandarin, Japanese, and Korean.

In 1999, Brian found his own skateboard shop called 8FIVE2. He is the president of the All Hong Kong Skateboards Association (AHKSA).

His acting career began in 2009 with his first role in the film “Once A Gangster”, directed by renowned filmmaker Felix Chong. Simultaneously, another renowned photographer Wing Shya also picked Brian to be in his debut co-directed movie called “Hot Summer Days”. Over the years, he participated in various commercials and movies such as “Cold War 1 & 2”, “Man of Tai Chi”, “Nessun Dorma”, “Members Only” etc.

李凱賢（Julius Brian Siswojo），是一位多才多藝的藝人，同時是香港Hip Hop組合廿四味的成員。他於1974年7月31日出生於印尼，11歲時移居香港，進入英語國際學校學習。隨後，他前往東京修讀日文，現今精通英語、粵語、國語、日文及韓文。

1999 年創辦自己的滑板店公司"8FIVE2"，並成為香港滑板協會主席，多年來一直推廣滑板運動，擔任多種滑板活動司儀。

他的演藝生涯始於2009年，首次參演了由著名導演莊文強執導的電影《飛砂風中轉》，隨後又參演了攝影師夏永康的電影《全城熱戀熱辣辣》。近年他接拍多部電影和廣告拍攝，如《寒戰》、《寒戰2》、《兇手還未睡》、《私人會所》等。