Brutus was more of an all-purpose evildoer in the TV series as opposed to always wanting to steal Olive Oyl from Popeye, as would Bluto.
Various media such as video games and memorabilia identify their villain as Brutus.
Comic books and strips in the years following the TV series' debut took to using 'Brutus' as the name of Popeye's nemesis, which has lasted to the present day. Only recently did the comic strip re-introduce Bluto, this time noting that he was Brutus' twin brother.
The concept of Brutus being Bluto's brother is also explored in the second of the Popeye Special comic books from Ocean Comics, which relate Popeye's early career; this was the first time the twins were shown together, with Brutus as the friendlier, more cowardly one and afraid of his more villanous brother.
- Popeye | The Home of Popeye the Sailor Man website
- Don Markstein's Toonopedia Popeye page
- Brutus at the Internet Movie Database