Seaward was born 20 December 1960 in Yelverton, Devon, England. First runner-up was Gina Swainson of Bermuda. Seaward also appeared in the 1983 James Bond film Octopussy.
In 2012, she appeared in the British Broadcasting Corporation Two documentary series Wonderland, in the episode, I Was Once a Beauty Queen.
She won Mission England and Mission United Kingdom in 1979. As Mission England, she was second runner-up at 1979. Then as Mission United Kingdom, she was first runner-up at 1979. Seaward is one of only three British beauty queens, along with Rosemarie Frankland and Helen Morgan, to have finished in the top three at both the and pageants. She became Mission England in 1979 and represented her country in Perth, Western Australia at 1979 in July, winning the Photogenic Award and placing as second runner-up to eventual winner Maritza Sayalero of Venezuela. Seaward (as of 2014) remains the last English woman to reach the top three at In the Autumn of 1979 she won the Mission United Kingdom pageant, and went on to represent the United Kingdom in November at 1979, this time placing as first runner-up. The winner of the title was Bermuda"s Gina Swainson, the first runner-up from Seaward"s second-place finish made her the third British beauty queen, and only one from England, to reach the top three at both and
