The baby uses her own voice
The kid in the new Capital One commercials is a young actor named Julian Feder. He portrays a character called "Young Muscles" in the commercials, who is the younger version of the Capital One spokesperson, Charles Barkley.
The bearded boy in the Capital One commercials is Aedin Mincks. He is an actor who has appeared in an impressive fourteen films and three TV commercials; two commercials in addition to Capital One are the Verizon Wireless "Pinata" and Wrigley's Orbit Gum.
One of the is Donald Gibb.
To me, it sounds like Sean Connery--at least, on one of the commercials, it does.
Capital One commercials are all over the television. They can also be viewed on YouTube and Daily Motion. The series with the primitive warriors is very popular.
The gecko (and not just the one in the Geico commercials!) is the only lizard with a voice.
Yes
Gus Machado
Kylie
On the commercials running currently (as of 9/20/12), the voice sounds like Richard Masur. He played Ann Romano's boyfriend on "One Day at A Time."
Graham Jones
The Capital One bank vikings are fictional characters used for promotional purposes in Capital One bank advertising. In order to become a viking in one of the commercials, it would be necessary to find out who produces the commercials and apply with them.