In an Instagram post shared by his wife Emma Heming Willis on Thursday, Willis can be seen shaking hands with a Los Angeles police officer.

Willis was diagnosed first with aphasia -- a condition where the brain's ability to understand or express language is impaired, according to the National Institutes of Health -- in 2022 before receiving an additional diagnosis of frontotemporal dementia in 2023, according to his family.

Bruce Willis took time to thank first responders in Los Angeles as the city’s devastating wildfires continue to burn. The actor — in an Instagram video shared by his wife, Emma Heming Willis, on Thursday — is seen shaking hands and posing for photos with Los Angeles police officers working during the fires,