Unnamed, unseen kids in "Underage Peter"
In "Jungle Love", Angela introduced Opie to Peter as his superior. Peter had trouble understanding Opie and even more trouble following orders, given the weird nature of all of them. For instance, Opie would ask Peter to stick his finger in his mouth, just so he could bite it. When Peter complained to Angela, she simply dismissed it and says "Although she doesn't understand Opie's workstyle, she still allows him to go through with it. After all, he does get his work done."
In "Chick Cancer", Peter told dark/offensive jokes to a group of his friendly co-workers, including Opie. Apparently, Peter had sealed wounds with Opie and now saw him as a friend, rather than "that jerk who works at his job". Perhaps Peter's reasons for forgiveness, was because in his previous appearance, he was so chill with him saving sex with his wife on the job.
In "Long John Peter", Peter brought his parrot to work, and it landed on Opie's head, trying to eat the protruding lock of hair on his head, believing it to be a worm or something. Opie screeched and flailed about, while that darn parrot just attacked him like mad.
In "Peterotica", he was one of the customers to buy Peter's tape.
In "New Kidney in Town", Peter made a shout out to him on The Price is Right.
In "Save the Clam", it was shown that despite recently getting fired, he still keeps in touch with Peter, as he was a member of his softball team.
- Jungle Love
- Mo' Jobs
- The Courtship of Stewie's Father
- Hell Comes to Quahog
- Brian Wallows, Peter Swallows
- Meg the Movie Star
- Whistle While Your Wife Works
- Chick Cancer
- Barely Legal
- The Father, The Son, and The Holy Fonz (Cameo)
- The Family Guy 100th Episode (Cameo)
- Long John Peter
- The Juice is Loose
- Blue Harvest (As a Tusken Raider)
- Go, Stewie, Go!
- The Splendid Source
- Lottery Fever (Cameo)
- Trading Places
- New Kidney in Town (Mentioned)
- It's a Trap! (As a Tusken Raider)
- The Blind Side
- Deaf Penalty (Mentioned)
- Save the Clam
- Peter Gets Served
- Brokeback Father
- Finders Keepers
- 200 Episodes Later
- 7th Kevin (Non-Speaking Cameo)
- Tea Peter
- Opie Mouthed
- Family Guy Viewer Mail #2
- The Simpsons Guy (Non-Speaking Cameo)
- A Lot Going on Upstairs
- Underage Peter
- Angela seems to be the only one who can understand him and she berates those who don't.
- We wears two different shoes on each foot.
- In the episode "Underage Peter", it was revealed that his reason for acting so stupid is because of him being constantly drunk. When he was forced to be sober, due to an alcohol ban, he spoke very clearly and exhibited a very intellectual personality.
- His reasons for his physical deviatons are still unknown.
- The reason for his odd hairstyle, however, is because he had a haircut that went horribly wrong.