I think I settle this now. If tmbd id is filled for me it means that there should also be actors images. If id is empty starring will show text only version.
As There is only so much space horizontally I created a little trick to show actor images. First two actors are now considered as a "main stars" and are shown always. Next four are then shown randomly from the rest of the actors. I could also make field which would contain "main stars" count so it could vary series by series. The Shuffle part of the template is a bit long due to MC's inconsistent list manipulation functions.
If(IsEqual([Media Sub Type],TV Show,1),/ <font size="170" color="ffffff"><b>[Series] | [Name]<//b><//font>
/ <font size="110"><i>Season: [Season] Episode: [Episode] <b>|<//b> [Duration] <b>|<//b> [Date] <b>|<//b> ListLimit([Genre],1) <b>|<//b> [Status] If(Compare([Rating],>,0),<b> | <//b><font color="ad900d">RatingStars()<//font><b> |<//b>,)<//i><//font>
<font size="180">If(!IsEmpty([Access Rating]),<img src="tooltip:rating-[Access Rating]">,) <img src="tooltip:definition-[Definition]">/ <img src="tooltip:speakers-[Channels]">/ <img src="tooltip:audio-[Audio Codec]">If(Compare(Number([Critic Rating]),>,0),/ <img src="tooltip:web-tvdb">/ FormatNumber(Number([Critic Rating]),1),)If(Compare(Number([TMDb Rating]),>,0),/ <img src="tooltip:web-tmdb">/ FormatNumber(Number([TMDb Rating]),1),)If(!IsEmpty([Production Companies]),/ <img src="tooltip:studio-ListItem([Production Companies],0)">,)<//font>
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If(!IsEmpty([Description]),<font size="120" color="62a2ba"><b>summary<//b><//font>
<font color="ffffff">[Description]<//font>,)
<font size="120" color="62a2ba"><b>starring<//b><//font>
If(!IsEmpty([Actors]),If(!IsEmpty([TMDb id]),<img src="tooltip:separator"><font size="800"><img src="D:\audio\Album Covers\Actors Series\Replace([Series],:,_)\Replace(ListLimit([Actors],2),;,.png"><img src="tooltip:separator"><img src="D:\audio\Album Covers\Actors Series\Replace([Series],:,_)\).png"><img src="tooltip:separator"><img src="D:\audio\Album Covers\Actors Series\Replace([Series],:,_)\Replace(Clean(ListLimit(ListShuffle(RemoveLeft([Actors], Math(Length(ListLimit([Actors],2)) + 2))),4)),;,.png"><img src="tooltip:separator"><img src="D:\audio\Album Covers\Actors Series\Replace([Series],:,_)\).png"><//font>,<font size="140" color="ffffff">Replace(ListLimit([Actors],6),;,/,)<//font>),)
If(!IsEmpty([Guest Stars]),<font size="120" color="62a2ba"><b>guests<//b><//font>
<font size="140" color="ffffff">Replace(ListLimit([Guest Stars],4),;,/,)<//font>
,)If(!IsEmpty([Director]),<font size="120" color="62a2ba"><b>director<//b><//font>
<font size="140" color="ffffff">Replace([Director],;,/,)<//font>
,)If(!IsEmpty([Screenwriter]),<font size="120" color="62a2ba"><b>screenwriter<//b><//font>
<font size="140" color="ffffff">Replace([Screenwriter],;,/,)<//font>
,)If(!IsEmpty([Creator]),<font size="120" color="62a2ba"><b>creator<//b><//font>
<font size="140" color="ffffff">Replace([Creator],;,/,)<//font>,)
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[Filename],)