 The first season of Real Adventures featured J. D. Roth as Jonny , George Segal as Dr. Quest , Robert Patrick as Race , Jesse Douglas as Jessie , Michael Benyaer as Hadji , and veteran voice actor Frank Welker as Dr. Jeremiah Surd . A childhood fan of the original series , J.D. Roth was inspired by Turner 's vision for the new series and swiftly accepted the role of Jonny . Roth was attracted by Jonny 's " star quality " , and approved of his characterization as a real kid without superpowers . He enjoyed Jonny 's infectious enthusiasm and impulsive alacrity . Roth also admired the show 's educational quality , something he had tried to integrate in his personal television pilots . When asked about how he played the relationship with Jonny 's father , he commented , " Jonny is crazy about his dad . He looks up to him and thinks he is the smartest man ever to walk to face of the earth . He has the typical teenage relationship with his father , but his father definitely sees something in him . Dr. Quest knows that Jonny is going to be something really special . " Michael Benyaer also enjoyed playing Hadji : " [ he ] is one of the few roles for an ethnic actor that is not a bad guy . I mean , how many East Indian heroes have been on television ? Hadji is for the sensitive kids out there . He is the outsider in all of us . " A Star Wars fan , Benyaer was happy to work with Mark Hamill for " In the Realm of the Condor " . Peter Lawrence 's request for an Indian @-@ descended voice actor was seen as an " unusual case of multi @-@ ethnic casting " . 
