Kaley Cuoco Surprises Patients at Children's Hospital Ahead of 'Big Bang Theory' Finale

Kaley Cuoco may be wrapping up the biggest role of her career but that doesn't mean she is too big to give back.

The "Big Bang Theory" star recently spent her time visiting patients at the Kentucky Children's Hospital. Cuoco revealed she spent the day with kids and their families with her husband, Karl Cook.

Posting a series of photos hugging and laughing with the children, the actress said, "It was truly remarkable to meet the kids one on one and see the smiles spread across their faces."

Sharing pics posing with the hospital staff, she thanked them for "their amazing care and for letting us be part of something special."

Cuoco ended her message by reminding everyone "to never take a day for granted."

Her impromptu hospital visit comes the same week that her "Big Bang" chapter closes. We will all say goodbye to Penny (no last name) on the finale this Thursday after 12 seasons.