His next major role was from 2002 to 2003 as Diego Guittierez in the daytime drama "The Young and the Restless". When the character was written off the show, Vaughan got a call from the producers of "General Hospital", who were seeking a new actor for the character of Lucky Spencer, son of the famous soap opera couple Luke and Laura. Vaughan was the first actor to portray Lucky as a full-fledged adult, with the part having been played by Jonathan Jackson and Jacob Young.