However , Davey soon begins to take over Finn 's mind , and Jake is forced into action to get his old friend back .
He shaves part of his hair , makes a fake mustache , and takes the moniker Davey ( voiced by Davey Johnson ) .
Davey Johnson soon begins to take over Finn 's mind , and Jake is forced into action to get his old friend back .
He shaves part of his hair , makes a fake mustache , and takes the moniker Davey ( voiced by Davey Johnson ) .