Tony

Neck Beard is a minor character in The Amazing World of Gumball. He made his first appearance in "Christmas" where Richard mistook him for a pregnant woman. His first prominent role was in "The Pony," in which he falls into a manhole while jogging.

Appearance
He is an overweight yellow man who wears a white sleeveless shirt, and apparently, no pants. Sometimes he is seen in his pink jogging ensemble.

Season 2

 * "Christmas" (debut)
 * "The Pony"
 * "The Sidekick"
 * "The Hero" (flashback)
 * "The Tag"
 * "The Limit"
 * "The Tape" (cameo)
 * "The Plan"
 * "The World"
 * "The Finale" (cameo)

Season 3

 * "The Extras" (cameo)
 * "The Gripes"
 * "The Law"
 * "The Mothers"
 * "The Shell" (cameo)
 * "The Pizza"
 * "The Lie"
 * "The Butterfly"
 * "The Saint"
 * "The Oracle"
 * "The Safety"
 * "The Spoiler" (cameo)
 * "The Countdown"
 * "The Downer"
 * "The Egg" (flashback)
 * "The Money"

Season 4

 * "The Return"
 * "The Others"
 * "The Romantic"
 * "The Wicked"
 * "The Traitor"
 * "The Awkwardness"
 * "The Nest"
 * "The Night"
 * "The Misunderstandings"
 * "The Compilation"
 * "The Scam"
 * "The Disaster"

Season 5

 * "The Boredom"
 * "The Vision"
 * "The Choices"
 * "The Loophole"

Trivia

 * A "neck beard" is the term for facial hair that grows around the neck, as of late stereotypical overweight and unattractive nerds have been nicknamed "neck beards" due to a number of them having facial hair around the neck.
 * Neck Beard's cheeks, ears, and color scheme are somewhat similar to Pikachu's from the Pokémon franchise.
 * He seems to have a New York/New Jersey accent, as heard in "The Pony."