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Agent Weiss joins Mission : Impossible 3

It helps to have friends in high places.

According to TV Guide, amiable actor Greg Grunberg, from "Alias" and "Felicity", has filmed a cameo in J.J Abrams’ "Mission : Impossible 3".

Grunberg worked with director Abrams – and has been friends with the writer/director since they were learning how to tie their own laces – on "Alias", "Felicity" and "Lost", and had been working with the filmmaking mate on his own show, which is now on the backburner.

"MI:3" will reunite Grunberg with his "Felicity" co-star Keri Russell.

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