John Ritter. John Ritter was 29 in Leave Yesterday Behind as 'Paul Stallings'.Carrie Fisher. Carrie Fisher was 21 in Leave Yesterday Behind as 'Marnie Clarkson'.Buddy Ebsen. Buddy Ebsen was 70 in Leave Yesterday Behind as 'Doc'.Ed Nelson. Ed Nelson was 49 in Leave Yesterday Behind as 'Mr. Clarkson'.Carmen Zapata. Carmen Zapata was 50 in Leave Yesterday Behind as 'Connie'.Robert Urich. Robert Urich was 31 in Leave Yesterday Behind as 'David Lyle'.Barbara Stuart. Barbara Stuart was 48 in Leave Yesterday Behind as 'Betty Stallings'.Walter Maslow. Walter Maslow was >> in Leave Yesterday Behind as 'Howard Stallings'.Carol Ann Williams. Carol Ann Williams was >> in Leave Yesterday Behind as 'Laura'.Bruno Piergentili. Bruno Piergentili was 36 in Leave Yesterday Behind as 'Dan'.Richard Michaels. Richard Michaels was 42 in Leave Yesterday Behind as 'Director'Ric Waite. Ric Waite was 44 in Leave Yesterday Behind as 'Director of Photography'Paul Harrison. Paul Harrison was >> in Leave Yesterday Behind as 'Writer, Producer'John A. Martinelli. John A. Martinelli was >> in Leave Yesterday Behind as 'Editor'Fred Karlin. Fred Karlin was 41 in Leave Yesterday Behind as 'Original Music Composer'Peg Cummings. Peg Cummings was >> in Leave Yesterday Behind as 'Set Decoration'Michael Baugh. Michael Baugh was >> in Leave Yesterday Behind as 'Production Design'John S. Perry. John S. Perry was >> in Leave Yesterday Behind as 'Costume Supervisor'