Jackson McWilliams

Jackson McWilliams is Odessa's fiance before Odessa goes into the moon palace. He is put in the dungeon of the castle. Luckily, Isabella, Phineas, and Ferb save him. Jackson often serves as a mentor for Phineas and Ferb.

Appearances

 * Isabella and the Sign of the Moon

Personality
A little stuck-up, Jackson generally doesn't care for others unless Odessa cares for them. He is the undefined "master of tough love", and dislikes anyone his fiance doesn't like. The reason for this is because when he met Odessa, she was being bullied by some people in an alley. He saved her and told her never to associate with those kind of people ever again. Lately, he is becoming a little more easy going now that he has met Phineas and Ferb, who teach him that not everyone is mean.

Odessa McWilliams
Odessa's autism often strains the two's relationship, causing Jackson to become overly protective, and Odessa to become overly recessive, making their relationship an unbalanced one. However, Jackson really cares for Odessa and would give all he had if only Odessa could be safe.

Isabella Garcia-Shapiro
Isabella is a little wary of Jackson, as his "tough love" thing kind of freaks her out. Jackson recognises that she exists because Odessa really cares for Isabella.

Phineas Flynn
Jackson serves as kind of a mentor for Phineas, giving him advice for relationships. Jackson also actively participates in Phineas and Ferb's Big Ideas.

Ferb Fletcher
Not much is known about Jackson's relationship to Ferb, but Jackson actively participates in Phineas and Ferb's Big Ideas, so Ferb knows him.