Sean Penn won the Best Supporting Actor Oscar for 'One Battle After Another' at the 98th Academy Awards. The actor did not attend the ceremony to accept his award. The other nominees in the category were Benicio Del Toro for 'One Battle After Another', Jacob Elordi for 'Frankenstein', Delroy Lindo for 'Sinners' and Stellan Skarsgård for 'Sentimental Value'.