Taran Killam will make his Broadway debut in musical-theater megasmash “Hamilton,” joining the cast along with a handful of other new additions over the next few months.

Killam will play King George in the show beginning Jan. 17. He’s one of five performers stepping into the New York edition of “Hamilton” over the next several weeks, starting with Alysha Deslorieux playing Peggy Schuyler and Maria Reynolds as of Dec. 16.

Killam, who was on “Saturday Night Live” for six years before his tenure ended in August. Although “Hamilton” is his first Broadway credit, he was seen on the New York stage last year in a concert staging of “Little Shop of Horrors,” in which he played sadistic dentist Orin in a cast led by Jake Gyllenhaal. On film, he’s appeared in movies including “The Heat” and “12 Years a Slave,” and directed the upcoming action comedy “Why We’re Killing Gunther” with Arnold Schwarzenegger.

Also joining the “Hamilton” cast are J. Quinton Johnson (as Hercules Mulligan/James Madison) and Bryan Terrell Clark (as George Washington) in January, as well as Anthony Lee Medina (as John Laurens/Philip Hamilton) in March.

Tony champ and pop-culture buzzmagnet “Hamilton” recently spawned an all-star “mixtape” that just topped the Billboard chart, as well as a second production in Chicago. Another production will play L.A. and San Francisco next year.