- Finley O'Donnell is known for NCIS: Los Angeles (2009) and Celebrity Family Feud (2008).
- Parents
- RelativesMaeve O'Donnell(Sibling)Charlie O'Donnell(Sibling)Lily O'Donnell(Sibling)
- Son of Chris O'Donnell and Caroline O'Donnell.
- Played the 5-year-old Callen, his father's character in NCIS: Los Angeles (2009), in the episodes Tin Soldiers (2011) and Lange, H. (2011).
- Grandson of Julia O'Donnell.
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