"Invasion" creator Shaun Cassidy has signed a two-year overall deal with Touchstone Television. Under the seven-figure pact, which has an option for a third year, Cassidy will develop series projects for the studio. "Shaun has continually engaged our attention through the range and breadth of the shows he has created," said Touchstone TV executive vp Julia Franz, who oversees creative affairs for the studio. "He has a way of taking a common theme and twisting it into something that feels innovative and unique." Cassidy joins Touchstone TV from Warner Bros. TV. Under his deal at WBTV, he most recently created and executive produced ABC's critically praised drama "Invasion." While at WBTV, he also executive produced such series as WB Network's "The Mountain" and CBS' "Cold Case." Additionally, Cassidy created or co-created the series "American Gothic," "Players," "Roar" and "Cover Me" and executive produced CBS' "The Agency." He is repped by CAA.