We're not talking about commercials or endorsements: these athletes acted in movies. And they were really bad.
Shaq
Not even a question. There might have been worse individual performances than Shaq, but no other athlete has had such a high ratio of screen time to acting talent.
Credits: Kazzam, Blue Chips, Steel
Source: st-listas.20minutos.es
Dennis Rodman
Yes, that is a picture of Dennis Rodman playing basketball with a little person. No, you will not be disappointed by how bizarre and otherworldly of an actor Rodman is. Matches his personality perfectly.
Credits: The Minis, Double Team
Via: zimbio.com
Tor Johnson
Former professional wrestler Tor Johnson makes the list less for his athletic career and more for his remarkable appearance in one of the worst movies ever made, Ed Wood's Plan 9 From Outer Space. He's a terrible actor in the best way.
Credits: Plan 9 From Outer Space, Night of the Ghouls
Source: upload.wikimedia.org
Howie Long
Broken Arrow. Firestorm. 3000 Miles to Graceland. Shockingly, these movies did not make Howie Long into an action hero.
Credits: Broken Arrow, Firestorm