Archer presents as a comedic exaggeration of his original Fate series persona, amplifying traits for humor. His trademark cynicism and pragmatism translate into overt sarcasm and deadpan delivery of jokes, frequently offering dry commentary on absurd scenarios or other characters' antics.

Within the "Holy Grail Grand Prix" race event, he engages in unconventional vehicular combat, parodying his main series abilities through tactics like wielding improvised weapons such as kitchen knives. His established passion for housework and cooking becomes a central comedic focus, showcasing intense competitiveness in culinary contests and domestic tasks, complete with exaggerated rivalries and unrealistically skilled chore proficiency.

Interactions with Rin Tohsaka echo their original dynamic but lean into comedy, depicting his loyalty through exaggerated, reluctant aid or overtly pragmatic "betrayals" meant to ultimately assist Rin within the show's nonsensical storylines. He features in episodic skits like working in a café alongside others, where his serious demeanor absurdly clashes with surrounding chaos to fuel situational humor.

Recurring exchanges with Gilgamesh highlight mutual disdain, mining humor from their occasional reluctant cooperation during comedic events like judging contests or facing shared chaotic disruptions. Archer consistently acts as a deadpan foil to over-the-top characters, particularly observing Lancer’s repeated, elaborate deaths with characteristic dryness.