* AllStarCast: Season 8 -- ''Top Chef: All-Stars'', which brought back 18 chefs across all seven seasons for one more shot at the title.
* HeyItsThatGuy: Chef Nyesha Arrington from the Texas season won her current job as Wilshire's executive chef on Food Network's Chef Hunter. Season 9 began airing on Bravo weeks before Food Network's short-lived Chef Hunter, making Nyesa's episode a ForegoneConclusion.
** Before competing in their respective seasons, Ed Cotton (Season 7) and Richard Blais (Season 4 and 8) both served as sous chefs to [[IronChefAmerica Iron Chef]] Cat Cora. Ashley (Season 6) has been serving as sous chef for [[IronChefAmerica Iron Chef]] Alex Guarnaschelli.
* ThePeteBest: Katie Lee was the hostess of season one of Top Chef before being replaced by Padma Lakshmi. Katie was brought back as a guest judge in ''All-Stars''.
** Kelly Choi hosted the first two seasons of ''Masters'' before being replaced by Curtis Stone, who is incidentally the first male host of any of the shows.
** For Top Chef Canada, Season 1 hostess Thea Andrews was replaced for season 2 by Canadian actress and former model, Lisa Ray. Though in this case, it was because Thea was pregnant, as shown when she guest hosted for the third episode of season two.
* RomanceOnTheSet: Hosea and Leah in Season 5.