Eugene Kal Siskel (January 26, 1946 February 20, 1999) was the film critic for the ''UsefulNotes/{{Chicago}} Tribune''. Along with Creator/RogerEbert, he was one-half of the weekly film review show ''Series/SiskelAndEbert: At the Movies.'' The two of them rated films with a simple system: thumbs up or down, with a brief discussion of a film's strengths and/or weaknesses before presenting a verdict.

The show propelled both Siskel and Ebert to nationwide acclaim, including appearances on ''Series/TheTonightShow'', and made both two of the most influential voices in American film criticism (and thus arguably ''all'' cultural criticism in the late 20th/early 21st century).

Siskel died in 1999 of complications following surgery to remove a brain tumor. He'd announced a leave of absence from "At the Movies" two weeks prior. Ebert frequently referred to his colleague in his essays until his own death in 2013.
* Siskel once appeared on ''Series/TheLarrySandersShow'' AsHimself.
* Jay Sherman in ''WesternAnimation/TheCritic'' is visibly a gestalt of both Siskel and Ebert; he has Siskel's hairstyle and Ebert's body type. Indeed, one episode features [[InkSuitActor animated versions]] of Siskel and Ebert ([[AsHimself playing themselves]]) as guest stars.
* Reportedly, in ''Film/{{Willow}}'', the heads of the moat monster were nicknamed "Siskel" and "Ebert." The villain of the film was also named "General Kael", after the critic [[http://en.wikipedia.org/wiki/Pauline_Kael Pauline Kael]].
* {{Captain Ersatz}}es of him and Ebert also appear in ''{{Film/Godzilla 1998}}'', as {{Obstructive Bureaucrat}}s. Both, funnily enough, felt the film [[DoWrongRight didn't go far enough with punishing them]].
* InsultToRocks: Discussing ''Film/{{Ishtar}}'' on their Worst of '87 special, Gene Siskel said "I just saw ''Film/RoadToMorocco'', and it is funnier than ''Ishtar''--of course, that's really, I guess, an insult to ''Road to Morocco''. Anything is funnier than ''Ishtar''--except ''Film/LeonardPart6''."
* RedOniBlueOni: Siskel generally came off as the Red Oni to Ebert's Blue Oni. Ebert's tastes tended to be more highbrow, and Siskel's more mainstream, as exemplified by their all-time favorite films: ''Film/LaDolceVita'' for Ebert, ''Film/SaturdayNightFever'' for Siskel.