Keanu Reeves is delving into his first major acting and producing gig on a TV series. The actor is slated to both star in and executive produce "Rain,"a globe-trotting action drama series based on the best-selling book series by Barry Eisler. Slingshot Global Media is producing the series which is expected to be taken out to buyers shortly, and a search is under way for a writer to pen the script. Reeves would play John Rain, a half-Japanese, half-American contract assassin who specializes in taking out his targets by making it look like death by natural causes.