John Smith Houston is Hal Houston's 11 yr old teenage son, who first met Daphne (while helping her getting the book that she had dropped while getting drop off by her father) after school. 

He is also his father's Co-worker/ 2nd assistant in Global Space Agency with his co-worker partner Gerald. 

His voice will be portrayed by Brain Doe, then later Jesse Eisenberg (from Rio).

He will first time appear in Curious George 4: Ted's Great Adventure, and reappears in Curious George Season 10, Curious George and the Golden Meatball.