[1] When originally cast, Devon was only planned to have appeared in a handful of episodes before being revealed as an enemy spy by the end of Season 1.

However, because of the popularity of the character, this plan was dropped and Ryan McPartlin was added to the credits as a regular member of the cast for Season 2.

[2] For example, during a hostage crisis at the Buy More, Devon formulates a plan with Big Mike, Morgan, Jeff and Lester to take down their captor, Ned, who Chuck learns is part of a Fulcrum plot.

[6] His nickname comes from Chuck's belief that "everything he does is awesome," including rock climbing, hang-gliding, speaking fluent Spanish,[1] and flossing.

[15] Chuck's father describes him as a "straight arrow";[16] his and Ellie's mistaken belief that while drunk he may have gone too far with an exotic dancer at his bachelor party horrifies and shames him.

[17][18] He coaches Morgan on his appearance, including tucking in his shirt and a focus on hair care products,[19] and is impressed with Casey's physique.

[15] Devon allows Morgan to stay on the couch for a few days to escape Big Mike's relationship with his mother.

[24] Devon has difficulty empathizing with other characters due to his awesome nature; when Jeff asks, "Have you ever had a dream that's never come true?"

For Halloween, he dresses up as Adam while wearing only flesh-colored underwear fitted with a fake fig leaf.

[8] He may have observed more than is good for him when going under due to a tranq and later a glimpse of General Beckman on Chuck's computer monitor.

Mostly these are minor bouts where he seems devoid of common sense, such as packing a set of dumbbells for his trip to Africa or loaning Morgan, who is notorious for his immaturity and irresponsible behaviour, a sizable amount of money.

"[27] Josh Schwartz indicated that Devon's knowledge of Chuck's secret life will lead to his becoming increasingly involved in Team Bartowski's spy operations as Season Three develops, and he got his first taste of the spy life in "Chuck Versus the Angel de la Muerte."

In "Chuck Versus the Tic Tac," however, Ellie is accepted to a neurology fellowship at USC, a dream of hers since childhood, and despite his desire to get them both away from danger, he eventually sees how important it is to her and decides to try to make it work.

In "Chuck Versus the Role Models" Devon is poisoned by a Ring agent while in Africa in such a manner as to appear to be stricken by malaria.

He does, however, accept Chuck's vocation, as he hands over Stephen's laptop, saying "I don't wanna know, and neither does Ellie, but if you're spying again, maybe it can help you."

When Sarah is injured in an explosion and Bryce Larkin shows up to visit her, Devon takes it on himself to run interference and chase him off.

Devon seemed pleased with the event, calling it "awesome," and explained to Ellie that Chuck and the boys kidnapped him into participation.

However posing as a lady cop-themed stripper, Agent Alex Forrest lured him into the home theater room, where she attempted to remove the access card from him under the guise of a strip-search.

While attempting to access Casey's computer Devon unwittingly triggers a lockdown, with metal bars blocking the windows and doors of the apartment.

[1] Devon saves his life and is invited, along with Chuck and Sarah, to a gala event at the Costa Gravas embassy, where the team attempts to protect Goya.