Silent films ====
Paramount Pictures (1919–1921)==== The first 25 Felix cartoons were distributed to theaters by Paramount Pictures. The character was named "Master Tom" until the third cartoon,
The Adventures of Felix. ====
Margaret J. Winkler (1922–1925)==== After the cancelation of Paramount Magazine, Pat went to Margret J. Winkler and would produce the next season of Felix shorts under her name. 64 cartoons. ====
General Electric (1925)==== This ten-minute cartoon was created to promote
Mazda light bulbs from General Electric. As an advertisement, it is not part of the main series. ====
Educational Pictures (1925–1928)==== After fighting over who owned the Felix character, Pat left Winkler and took Felix with him. For the 1925-1928 season, Pat would make Felix cartoons under Educational Pictures. 78 cartoons. With the introduction of sound, Educational Pictures told Pat that they should add sound to the next season of Felix cartoons. Pat refused though, saying that sound would "ruin" the Felix cartoons. Leaving Educational Pictures in total.
First National Pictures (1928–1929) It is unknown if new Felix cartoons were produced during this period or if
First National (sister company
Warner Bros.) only redistributed earlier Felix cartoons.
Sound films Copley Pictures (1929–1930) Copley Pictures was the first distributor to issue Felix cartoons with sound. There were 12 originally with sound, and 19 reissues, for a total of 31 cartoons.
Sound reissues A number of silent Felix cartoons were also re-issued by Copley at this time, with their
intertitles removed and sound added. Newer simple titles were also inserted in most reissues and the lines of the characters were cut, which removed signs of
Educational Pictures copyrights. Jacques Kopfstein was hired by Pat Sullivan to add sound to the film, a practice common in the end of the silent film era, with films that received such treatment known to some as
"goat glands". All Felix shorts that were re-issued in sound have post-synchronized soundtracks (the soundtrack was made to match the already-existing film). As a result, the synchronization is not perfect, and there is occasionally an audible delay between the action and the sound effect.
New releases Copley also distributed 12 cartoons originally with sound.
Van Beuren Studios (1936) This short revival of Felix (as a more childlike character, similar to his later 1958 incarnation) was produced by
Van Beuren Studios as part of the
Rainbow Parade series and distributed to theaters by
RKO Radio Pictures. All of these cartoons were the first to be produced in three-strip
Technicolor. ==Television==