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Firstborn

Firstborn Cast

10 cast members · 10 with popularity data
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Most Popular Firstborn Cast Members

Robert Downey Jr. is currently the most popular Firstborn cast member online with a Attention Score of 11.5. 1 of 10 cast members rank in the top 1,000 actors online today. Updated August 13, 2026.

1
Robert Downey Jr.
Lee
11.5
#112 overall
2
Sarah Jessica Parker
Lisa
3.8
#1,042 overall
3
Corey Haim
Brian Livingston
2.0
#2,867 overall
4
Teri Garr
Wendy
1.5
#3,965 overall
5
Peter Weller
Sam
1.3
#4,616 overall
6
Ned Eisenberg
Learner Driver (uncredited)
0.2
#22,571 overall
7
Christopher Collet
Jake Livingston
0.1
#28,353 overall
8
Chris Gartin
Mr. Rader
0.1
#35,809 overall
9
James Harper
Mr. Rader
0.0
#45,551 overall
10
Larry Atlas
Stranger
0.0
#59,544 overall
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