Guy Bates Post (September 22, 1875 – January 16, 1968) was an American character actor who appeared in at least 21 Broadway plays and 25 Hollywood films over a career that spanned more than 50 years.

[1][3][4] Post made his professional debut in November 1894 at Chicago's Schiller Theatre playing a minor role opposite Cora Urquhart Brown-Potter and Kyrle Bellew in Charlotte Corday.

[6] His big break came early in 1900 when he was chosen to play David Brandon in Liebler and Company's Southern American tour of Israel Zangwill's The Children of the Ghetto.

[3][7] Although the tour proved short lived, Post's performance in The Children of the Ghetto led to such rôles as Rawdon Crowley, in Langdon Miller's dramatization of the William Makepeace Thackeray novel Vanity Fair; Lieutenant Denton, in Augustus Thomas' Arizona; Robert Racket in the Madeleine Lucette Ryley play My Lady Dainty; and Abbe Tiberge, in Theodore Burt Sayre's dramatization of the Abbé Prévost short novel Manon Lescaut.

In 1939, he was once again cast as Louis Napoleon in the film The Mad Empress opposite Medea de Novara, Lionel Atwill and Conrad Nagel.