Kari Byron and Grant Imahara failed, while Tory Belleci completed it by tucking his spoonful into his cheek and letting saliva accumulate in his mouth until he could swallow.
During the second half of the 2009 season, Byron was on maternity leave and was temporarily replaced by Jessi Combs.
Lord Byron | Byron | Byron White | Byron Nelson | Byron Cage | John Byron | Tom Byron | Kari Matchett | Don Byron | Byron Preiss | Byron Bay | Kari Lehtonen | Byron Bay, New South Wales | Port Byron, Illinois | Lord Byron of Broadway | Byron Roberts | Byron Mann | Kathleen Byron | Kari Byron | James Kari | Byron Shire | Byron Leftwich | Byron Haskin | Byron Dorgan | Byron Coley | Byron Baer | Byron Andrews | Byron Allen | Richard Byron, 2nd Baron Byron | Richard Byron, 12th Baron Byron |
Starting with the second season, members of Hyneman's staff were introduced and began to appear regularly in episodes; Kari Byron, Tory Belleci and welder Scottie Chapman appeared in the second season.
On July 31, 2009, Discovery Channel announced the addition of Combs to the cast of MythBusters while co-host Kari Byron went on maternity leave after giving birth to her first child.