Washington — After a 35-year acting career and with two iconic television characters to her name — Elaine Benes of Seinfeld and foul-mouthed Vice-President Selina Meyer — Julia Louis-Dreyfus has been honoured with the Mark Twain Prize for lifetime achievement in comedy. On Sunday night at Washington's Kennedy Center, the 57-year-old actress received a stream of testimonials from celebrities including Jerry Seinfeld, Stephen Colbert and 2010 Mark Twain recipient Tina Fey, touching on the multiple aspects of her career. "We both started comedy in Chicago," said Fey, paying tribute by tracking the similarities between their lives.