They finally revealed the character on ` ` How I met Your Mother '' Viewers theorized it would be a big star . There was something that we felt like this audience who has stuck with us for all of these years we wanted to reward them with that . Co - creator says they were able to incorporate some surprises into the show .
They finally revealed the character on ` ` How I met Your Mother '' Viewers theorized it would be a big star . Co - creator says they were able to incorporate some surprises into the show .