Luke Lerdwichagul (born May 24, 1999), also known online as SMG4 (formerly SuperMarioGlitchy4), is a Australian YouTuber, animator, director, producer, writer, editor, and voice actor. He is the founder and series director of the SMG4 channel, the co-founder and CCO of the animation studio Glitch Productions, the co-creator of the web series Meta Runner and Sunset Paradise, and an executive producer on Murder Drones and The Amazing Digital Circus. He is represented in videos as the aforementioned SMG4, a blue-and-white character resembling him and who was originally a Mario recolor and one of the two main protagonists of the bloopers, while Luke himself serves as one of the overarching protagonists. He is the younger brother of Kevin Lerdwichagul and the second-oldest brother of Max Lerdwichagul and Tish Lerdwichagul.

卢克·勒德维查古尔（Luke Lerdwichagul），网名 SMG4，是一位澳大利亚 YouTuber、动画师、导演、制片人、编剧、编辑、配音演员以及角色/平面设计师。

他是SMG4频道的创始人兼系列总监，动画工作室 Glitch Productions 的联合创始人兼首席创意官，网络剧集《Meta Runner》和《Sunset Paradise》的联合创作者，以及《Murder Drones》和《The Amazing Digital Circus》的执行制片人。在视频中，他以前面提到的SMG4的形象出现，一个与他本人相似的蓝白色角色，最初是马里奥的配色版本，也是搞笑片段中的两个主要角色之一，而卢克本人则是主要角色之一。他是凯文·勒德维查古尔的弟弟，也是马克斯·勒德维查古尔和蒂什·勒德维查古尔的二哥。

ルーク・ラードウィチャグル（オンラインでは SMG4 としても知られる）は、オーストラリアの YouTuber、アニメーター、監督、プロデューサー、ライター、編集者、声優、キャラクター/グラフィックデザイナーです。

Luke Lerdwichagul (nascido em 24 de maio de 1999), também conhecido na Internet como SMG4, é um YouTuber, animador, diretor, produtor, escritor, editor, dublador e designer gráfico de personagens, sua nacionalidade é australiana, porém é descendente de tailandês.