Owned by Curtis. A refined hamster who is rather smart. He has a crush on Pashmina but often battles with his long-time best friend, Howdy, for her affection. He offered to make a club motto in Latin for the ham-hams when they first established the Clubhouse.
In the English dub, Dexter's voice is nasally and geeky; this is not so in the Japanese episodes.
Howdy and Dexter are frienemies. They fight over Pashmina, over Howdy's “bad jokes”, and sometimes fight for no apparent reason. Dexter can be petty about scolding Howdy due to their rivalry. They are still friends, however, as shown in The Reconciliation! and We Are the Best of Friends! and make sure to protect each other if either are in trouble. Their owners, Goldie and Curtis, reflect their friendship, fighting sometimes for the sake of rivalry, but at the end of the day are still best friends. They are also neighbours.
Dexter as well as Howdy are constantly fighting to win Pashmina's heart. She usually ignores them or just doesn't notice. When she does, she seems irritated by their arguing. Bluntly put, Pashmina just doesn't like either of them back. Yet they still continue to fight. The battle for Pashmina seems to stop completely post-season four.
Though Dexter admitted that he thought Hannah was pretty, he doesn't seem to have romantic feelings for her. However, Hannah was infatuated with him in Hannah is in Love! because he was so "sweet and caring", and she finds it charming how "sophisticated" Dexter is. Despite this, Hannah's crush on Dexter is short-lived; when he feels queasy on a ride at the Ham-Ham Fun Park, she deems him a "wimp".
- Pashmina's Present (#22)
- The Search for Dad's Glasses! (#29)
- Watching Over Cute Penelope (#34)
- The Reconciliation! (#64)
- Hannah is in Love! (#93)
- My Best Friend (#248)
- A Picnic Date! (#294)
- His Japanese name is a pun: "Megane" means "glasses" in reference to the tan markings of fur around his eyes that makes him look like he's wearing glasses. Coincidentally, his owner is an optometrist.