<Li> Clarence (Gary Friedkin) (season 10; 3 episodes)--A cook at Arnold's who is referred to several times throughout the show, but never actually seen until the episode "A Woman Not Under the Influence". There, it is revealed that Clarence is a little person . Clarence seems to have a good relationship with Al, but also frequently upsets him while goofing off in the kitchen . </Li> <Li> Bill "Sticks" Downey (John - Anthony Bailey) (season 3; 2 episodes)--Friend of Fonzie, Richie, Potsie and Ralph and drummer for their band, hence his nickname "Sticks", though he claimed he got the nickname because he was skinny . </Li> <Li> Mitsumo "Arnold" Takahashi (Noriyuki "Pat" Morita) (seasons 3 10--11: 26 episodes) depicted the owner of Arnold's Drive - In for season three (1975--76). He stated that he obtained the moniker when he purchased Arnold's restaurant and people thought it was named after him, explaining that it was too costly to buy enough letter signs needed to rename it "Takahashi". He moonlighted as a martial arts instructor, teaching self - defense classes at the drive - in after hours . Morita also played "Arnold" as a guest star in 1977 and 1979 before returning as a recurring character after Al Molinaro departed in 1982 . </Li> <Li> Grandma Nussbaum (Frances Bay) (seasons 9, 10 & 11: 3 episodes)--Chachi Arcola and Fonzie's Grandmother . </Li>

Who was the first owner of arnold's on happy days