Timothee Chalamet's Mary Supreme co-star loses bet after star fails to win Best Actor Oscar Timothee Chalamet's Marty Supreme co-star, Kevin O'Leary, is $1,000 down after Timothee Chalamet lost out on Best Actor at the Academy Awards. 16 March 2026 Timothee Chalamet's Marty Supreme co-star Kevin O'Leary lost a $1,000 bet after the lead star walked away without the Best Actor trophy at Sunday night's (15.03.26) Oscars.