Former child star Will Rothhaar has been cast as assassin Lee Harvey Oswald in a new Tv movie about the death of former U.S. leader John F. Kennedy.

The Battle Los Angeles star, who landed a role in festive family film Jack Frost when he was 10, has joined Rob Lowe and Ginnifer Goodwin, who will play Kennedy and his wife Jackie, in Killing Kennedy.

Michelle Trachtenberg will play Oswald's wife Marina and Pat Gleason will portray the assassin's mother.

Also joining the cast of the two-hour Tv film will be Francis Guinan as vice president Lyndon Baines Johnson and Jack Noseworthy as Robert F. Kennedy.

Killing Kennedy will premiere later this year (13) when America marks the 50th anniversary of the Kennedy assassination.