<P> The character initially appeared as an unnamed character in a cameo in The Avengers # 54 ( 1968 ) , with a first full appearance in Avengers # 55 ( 1968 ) . Ultron was created by writer Roy Thomas and artist John Buscema . Thomas , who has acknowledged he finds naming characters difficult , said he liked the - tron suffix and went from there . Thomas said the idea of the character and his appearance were heavily based on Makino , an obscure robotic villain who appeared in an issue of the Captain Video comic book . He liked the robot 's malicious looking smile , showing this to Buscema . </P>
<P> The character initially appeared as an unnamed character in a cameo in The Avengers # 54 ( 1968 ) , with a first full appearance in Avengers # 55 ( 1968 ) . Ultron was created by writer Roy Thomas and artist John Buscema . Thomas , who has acknowledged he finds naming characters difficult , said he liked the - tron suffix and went from there . Thomas said the idea of the character and his appearance were heavily based on Makino , an obscure robotic villain who appeared in an issue of the Captain Video comic book . He liked the robot 's malicious looking smile , showing this to Buscema . </P>
when did ultron first appear in the comics
when did ultron first appear in the comics
Avengers # 55 ( 1968 )
Avengers # 55 ( 1968 )