Suggestions by @user_284781

Bela Lugosi

as Minion in Casting Suggestions for Famous Heroes

Score: +6

Bela Lugosi and Boris Karloff

as Megamind and Minion (Group) in Casting Suggestions for Famous Heroes

Score: +5

Donny Osmond

as Finn The Human in Adventure Time (1970-1978)

Score: +3

Lincoln, Lori, and Bobby

as Katharine Hepburn, Cary Grant, and James Stewart in Voice actors and characters

Score: +4

Timmy, Cosmo, and Wanda

as Katharine Hepburn, Cary Grant, and James Stewart in Voice actors and characters

Score: +4

Yakko, Wakko, and Dot Warner

as Katharine Hepburn, Cary Grant, and James Stewart in Voice actors and characters

Score: +4

Lincoln, Lori, and Bobby

as Katharine Hepburn, Cary Grant, and James Stewart in Characters golden age stars could have played

Score: +3

Timmy, Cosmo, and Wanda

as Katharine Hepburn, Cary Grant, and James Stewart in Characters golden age stars could have played

Score: +3

Yakko, Wakko, and Dot Warner

as Katharine Hepburn, Cary Grant, and James Stewart in Characters golden age stars could have played

Score: +3

Bart Simpson and Milhouse Van Houten

as Cary Grant and James Stewart in Voice actors and characters

Score: +3

Lincoln Loud and Bobby Santiago

as Cary Grant and James Stewart in Voice actors and characters

Score: +3

Sonic and Tails

as Cary Grant and James Stewart in Voice actors and characters

Score: +3

Yakko and Wakko

as Cary Grant and James Stewart in Voice actors and characters

Score: +3

Bart Simpson and Milhouse Van Houten

as Cary Grant and James Stewart in Characters golden age stars could have played

Score: +4

Lincoln Loud and Bobby Santiago

as Cary Grant and James Stewart in Characters golden age stars could have played

Score: +4

Sonic and Tails

as Cary Grant and James Stewart in Characters golden age stars could have played

Score: +4

Yakko and Wakko

as Cary Grant and James Stewart in Characters golden age stars could have played

Score: +4

Sir Ebrum

as Raoul Walsh in Voice actors and characters

Score: +3

Enderman

as Raoul Walsh in Voice actors and characters

Score: +3

Sheriff Woody

as Raoul Walsh in Voice actors and characters

Score: +3