Ted Mosby
Theodore Evelyn Mosby is a fictional character and the main protagonist in the U.S. television sitcom "How I Met Your Mother", portrayed by Josh Radnor. Ted also serves as the show's narrator from the future, voiced by Bob Saget, as he tells his children the "long version" of how he met their mother.
David Burtka
Burtka appeared in seven episodes of "How I Met Your Mother;" in all seven such installments, he acted out "Scooter," the former high school boyfriend of Lily (Alyson Hannigan), who still had not gotten over their breakup. Burtka made a cameo appearance, in "A Very Harold & Kumar 3D Christmas," as himself; in it, he also shared a scene with Neil Patrick Harris, in a part that was much like his character from "How I Met Your Mother."