Tom Welling,Allison Mack,Annette O'Toole
Where Is The Cast Now ... [PAR] Oct 21, 2015 ... Annette O'Toole played Martha Kent on Smallville for six seasons before her 
character went off to Washington and returned for four episodes... [DOC] [TLE] Annette O'Toole as Martha Kent in "Smallville" - KryptonSite [PAR] Annette O'Toole is no stranger to Superman fans.