Erin O'Reilly is known for The Baby (1973), The Princess Diaries (2001) and Blume in Love (1973).

David Mooney and Erin O'Reilly in The Baby (1973)

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Get a closer look at some of Hollywood's perfect pairs.

Hollywood Power Couples

Get a closer look at some of Hollywood&#39;s perfect pairs.

"The Gentlemen" and "Slow Horses" return this fall, while the "Reacher" spin-off series "Neagley" makes its debut. See our guide of the biggest Fall TV and streaming releases.

2026 Fall TV and Streaming Watch Guide

&quot;The Gentlemen&quot; and &quot;Slow Horses&quot; return this fall, while the &quot;Reacher&quot; spin-off series &quot;Neagley&quot; makes its debut. See our guide of the biggest Fall TV and streaming releases.

Get a closer look at these actors from their many TV and streaming series roles.

Streaming Stars, Then and Now

Julie Andrews and Anne Hathaway in The Princess Diaries (2001)

Elliott Gould and Robert Blake in Busting (1974)

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