<Li> Barry Robinson ( voiced by Eddie Kaye Thomas for the normal voice , Craig Ferguson for the evil voice ) -- Steve 's morbidly obese friend , who has an inarticulate , strident , and sloppy vocal quality . Stan disdains Barry , often impulsively yelling insults at him about his weight without even knowing why . Like Snot , Barry can speak Klingon and seems to be able to read Quenya . Barry apparently has a fetish for Miss Piggy . His borderline mentally retarded and innocent personality is the result of powerful anti-psychotic pills . In `` one episode '' after stopping his medication regimen , Barry turns into a deranged and demonic mastermind , speaking in a low - pitched voice `` like Gary Oldman '' , framing Steve for the destruction of Stan 's beloved commemorative plates . Barry did this in an attempt to replace Steve within his immediate family . Barry 's madness grows worse over the episode , culminating with him trying to eliminate everyone that might get between himself and Stan . Steve ultimately tricks Barry into taking his medication , reverting him back to his usual self . This facet of his personality is hinted at when he helps Snot and Toshi beat up a drugged Steve and screams that they should kill Steve 's whole family . Barry describes his parents as ignorant and implies that they engage in bondage sex play and smoke pot . Other statements about his parents imply that they abuse him or are negligent , making him sleep in their basement and often forgetting he is their son ( and that they even have a son ) . </Li>
<Li> Barry Robinson ( voiced by Eddie Kaye Thomas for the normal voice , Craig Ferguson for the evil voice ) -- Steve 's morbidly obese friend , who has an inarticulate , strident , and sloppy vocal quality . Stan disdains Barry , often impulsively yelling insults at him about his weight without even knowing why . Like Snot , Barry can speak Klingon and seems to be able to read Quenya . Barry apparently has a fetish for Miss Piggy . His borderline mentally retarded and innocent personality is the result of powerful anti-psychotic pills . In `` one episode '' after stopping his medication regimen , Barry turns into a deranged and demonic mastermind , speaking in a low - pitched voice `` like Gary Oldman '' , framing Steve for the destruction of Stan 's beloved commemorative plates . Barry did this in an attempt to replace Steve within his immediate family . Barry 's madness grows worse over the episode , culminating with him trying to eliminate everyone that might get between himself and Stan . Steve ultimately tricks Barry into taking his medication , reverting him back to his usual self . This facet of his personality is hinted at when he helps Snot and Toshi beat up a drugged Steve and screams that they should kill Steve 's whole family . Barry describes his parents as ignorant and implies that they engage in bondage sex play and smoke pot . Other statements about his parents imply that they abuse him or are negligent , making him sleep in their basement and often forgetting he is their son ( and that they even have a son ) . </Li>
who does barry 's voice in american dad
who does barry 's voice in american dad
Eddie Kaye Thomas
Eddie Kaye Thomas