Clerks that worked in stores who had to deal with the extremely bright scientists who frustrated them, especially Sheldon.
Angela Relucio as Hostess in The Comic Book Store Regeneration who worked at the deli where Raj and Leonard met Nathan Filion.
Jonathan Schmock as Jonathan in The Shiny Trinket Maneuver, the jewelry store clerk who sold Sheldon Amy's tiara.
Michael Hyatt as Charlotte in The Bath Item Gift Hypothesis who work at the bath shop and was uncomfortable when Sheldon tried to talk to her.
Whitney Avalon as Elsie in The Wildebeest Implementation who was behind the counter of a coffee shop when Raj was on a experimental drug.
Will Deutsch as Jeremy in The Friendship Algorithm who was at the bookstore.
William Stanford Davis as Dry Cleaner in The Parking Spot Escalation who served Sheldon when he wants his couch cushion cleaned.
Fernando Riveria as Sales Person in The Indecision Amalgamation who told Sheldon the computer store was closed.
Elka Rodriguez Rose Lady in The Geology Methodology who tried to sell Raj a rose while in was on a casual date with Ruchi.
Angela Relucio as the clerk in The Comic Book Store Regeneration who sold Leonard and Raj their food where they met Nathan Fillion.
Lynn Andrews as Margaret in The Sibling Realignment who worked in brother George's tire store.
Tiffany Daniels as Clerk in The Collaboration Fluctuation.
Chuck Carter as Stan in The Peanut Reaction as the manager who makes Sheldon stop helping his customers.