<Li> Peter MacDougall ( 10 episodes ; played by Chris Elliott ) is Amy 's older brother . He has a strange , psychologically unstable personality ( Robert once stated that `` There are squirrels juggling knives in his head '' ) and a duplicitous , quick - witted mind . Opposed to his sister 's marriage , he insists that he will keep trying to break it up , which explains the reason why during Robert 's wedding that Robert and Ray looked at him when the pastor asked if anyone objected to Robert and Amy 's marriage . Peter is single but lives with his pet house cat , Miss Puss . At first , Peter and Robert hate each other , but in `` Peter on the Couch , '' the two find common ground in the fact that they both suffered from being the overshadowed older sibling and living with their parents . He is fond of Ray , although the feeling is n't mutual . Peter was originally introduced as `` Russell '' , the owner of a comic book shop ( played by comedian Paul Reubens ) in a one - time appearance . Russell abruptly became Peter because in `` Just a Formality '' ( episode 7.14 ) , Peter mentions meeting Ray at the comic book store ( which was Russell ) . </Li>
<Li> Peter MacDougall ( 10 episodes ; played by Chris Elliott ) is Amy 's older brother . He has a strange , psychologically unstable personality ( Robert once stated that `` There are squirrels juggling knives in his head '' ) and a duplicitous , quick - witted mind . Opposed to his sister 's marriage , he insists that he will keep trying to break it up , which explains the reason why during Robert 's wedding that Robert and Ray looked at him when the pastor asked if anyone objected to Robert and Amy 's marriage . Peter is single but lives with his pet house cat , Miss Puss . At first , Peter and Robert hate each other , but in `` Peter on the Couch , '' the two find common ground in the fact that they both suffered from being the overshadowed older sibling and living with their parents . He is fond of Ray , although the feeling is n't mutual . Peter was originally introduced as `` Russell '' , the owner of a comic book shop ( played by comedian Paul Reubens ) in a one - time appearance . Russell abruptly became Peter because in `` Just a Formality '' ( episode 7.14 ) , Peter mentions meeting Ray at the comic book store ( which was Russell ) . </Li>
who plays amys brother on everybody loves raymond
who plays amys brother on everybody loves raymond
Peter MacDougall
Peter MacDougall