Possible Clues:

• Actor Oliver
• Oliver of 'Chicago Med'
• Oliver of 'The West Wing'
• Oliver of 'Lake Placid'
• Polly __, producer and screenwriter and key figure in 21/23/11/15
• 'Dear Evan Hansen' star Ben
• 'The Politician' star Ben
• Oliver of 'Huff'
• Oliver of stage and screen
• Co-star of 'The Big C'