罗伯特·D·西格尔 （Robert D. Siegel）是一位以《洋葱电影》和《摔跤手》而闻名的美国编剧，也是《大粉丝》的编剧和导演。他的电影《摔跤手》在2008年威尼斯电影节上获得了金狮奖，并获得了多项最佳影片提名。《大粉丝》于2009年在圣丹斯电影节首映。在一次在线采访中透露，西格尔试图为一部喜剧电影写草稿，但由于电影中的冲突以及避免巴顿·奥斯瓦尔特被塑造成喜剧角色，它最终变成了一部戏剧。

Siegel毕业于密歇根大学，后来于1996年至1999年担任《洋葱报》的高级编辑，并于1999年至2003年担任主编。

Robert D. Siegel is an American screenwriter known for The Onion Movie and The Wrestler, as well as the writer and director of Big Fan. His movie The Wrestler won the Golden Lion at the 2008 Venice Film Festival and has earned several Best Picture nominations. Big Fan premiered at the Sundance Film Festival in 2009. It was revealed in an online interview that Siegel attempted to write drafts for a comedy film but it ended up being a drama because of the conflicts in the film as well as avoiding Patton Oswalt being typecast as a comedic character.

Siegel is a graduate of the University of Michigan who later became senior editor of The Onion from 1996 to 1999, and editor-in-chief from 1999 to 2003.