How old was Siobhan Mullen in…

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Siobhan Mullen was ? in Doug's 1st Movie as 'Storyboard Artist'.

Movie Released: Fri, Mar 26 1999

Siobhan Mullen was ? in Beavis and Butt-Head Do America as 'Layout'.

Movie Released: Fri, Dec 20 1996

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Ages in TV shows are based off the first air date and may not be accurate. View individual episode details for accurate ages

Siobhan Mullen was ? in Sheep in the Big City as 'Storyboard Artist'.

TV Show Released: First Air Date
Fri, Nov 17 2000