Ulysses is the name of two fictional characters in the Marvel Universe

Marvel Universe

The Marvel Universe is the shared fictional universe where most comic book titles and other media published by Marvel Entertainment take place, including those featuring Marvel's most familiar characters, such as Spider-Man, the Hulk, the X-Men, and the Avengers.The Marvel Universe is further...

. The first being the predecessor of the second.
The original Ulysses was much older than Walter Charles, his successor. When Ulysses became annoyed at Agamemnon's illogical leadership decisions Agamemnon ordered fellow Pantheon

Pantheon (Marvel Comics)

The Pantheon is a fictional organization appearing in the comic books published by Marvel Comics. Created by writer Peter David, the Pantheon first appeared in The Incredible Hulk The Pantheon is a fictional organization appearing in the comic books published by Marvel Comics. Created by writer...

 member Jason

Jason (Pantheon)

Jason the Renegade is a fictional comic book character who appeared in a supporting role in Marvel Comics monthly series, The Incredible Hulk...

 to kill Ulysses. Jason refused and the task went to Achilles

Achilles (Pantheon)

Achilles is the name of two unrelated characters from the Marvel Universe. The first Achilles fought in World War II and first appeared in Incredible Hulk vol...

 instead. Ulysses and his future successor Walter Charles went to save a young Nathan Taylor (aka Paris

Paris (Pantheon)

Paris is a fictional character in the Marvel Universe.-Fictional character biography:A young Nathan Taylor aka Paris was saved from the Watts Riots in 1959 by Pantheon members Ulysses I and Walter Charles . Nathan's parents were killed during a fire. Nathan blamed Walter for their deaths and still...

) hoping to get to him before the Watts riots of 1959 began.